This section includes 7 InterviewSolutions, each offering curated multiple-choice questions to sharpen your Current Affairs knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
A^2b^2x^2+b^2x-a^2x-1=0 |
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Answer» Solution is in the given attachment. |
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| 2. |
The force applied on a body of mass 6 kg. is directly proportional to the acceleration produced in the body. Write an equation to express this observation and draw the graph of the equation. |
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Answer» Hi, |
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| 3. |
The circumference of a compact disc is 28.26cm. what is the radius of the compact disc |
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Answer» Compact DISK is in the shape of a circle. Hence the circumference of a compact disk can be equated to that of a circle. => Circumference of Circle = 28.26 CM We KNOW that Circumference of a circle is 2πr, where R is the radius of the circle. Hence substituting them in the formula we get, 2πr = 28.26 2 * 3.14 * r = 28.26 6.28 * r = 28.26 => r = 28.26 / 6.28 => r = 4.5 cm Hence the radius of the compact disk ( CD ) is 4.5 cm. |
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| 4. |
A coin is tossed 125 times and head is obtained 64 times. now, if a coin is tossed at random, what is the probability of getting a head? |
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Answer» PROBABILITY = 64/125 |
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| 5. |
Area of a parallelogram is 83.2 sq cm. If its height is 6.4 cm, find the length of its base. |
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Answer» Area of a PARALLELOGRAM FORMULA: b*h=A Plug in the values that you know. b*6.4=83.2 Divide both sides by 6.4 b=13 So your answer WOULD be b=13 SQ cm. Hope this HELPS ;) |
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| 6. |
If x=-1/3 is a zero polynomial p(x)= 27x^3 -ax^2 -x +3 then find the value of a |
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Answer» If X = -1/3 |
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| 7. |
in the given figure ab is parallel to CD angle abe equal to 120 degree angle ecd is equal 100 degree and angle BeC is equal to X please find the value of x |
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| 8. |
If d is the hcf of 56 and 72 find the values of x and y which satisfies d=56x+72y |
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| 9. |
The number of permutations that can be made from the letters of the word SUNDAY that neither begin with S nor end with Y |
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Answer» Given : Letter of Word SUNDAY To find : The NUMBER of permutations that can be MADE from the letters of the word SUNDAY that neither begin with S nor end with Y Solution: SUNDAY total Letters = 6 total possible Combination = 6 ! = 720 if begin with S then possible combination = 5! = 120 if end with Y then possible Combination = 5! = 120 both Contains the CASE begin with S & end with Y if begin with S & end with Y then possible combination = 4! = 24 The number of permutations that can be made from the letters of the word SUNDAY that neither begin with S nor end with Y = 720 - 120 - 120 + 24 = 504 504 is The number of permutations that can be made from the letters of the word SUNDAY that neither begin with S nor end with Y Learn more: What is the number of permutations of the word 'QUADRATIC' such ... the number of permutations of 123456 that have exactly one number ... if number of permutations of n objects taken r at a time without ... |
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| 10. |
Find two rational number between -1/2and 1/2 |
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Answer» Both SIDE MULTIPLY by 2 |
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| 11. |
What is Sn - Sn-1 in an AP |
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Answer» You subtract s(n-1) from s(n) to get the NTH term. |
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| 12. |
In the A.P 2,x,26 find the value of x |
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Answer» 2,X, 26 are in A. P. |
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| 13. |
In a row of boys, Srinath is 7th from the left and Venkat is 12th from the right. If they interchange their positions, Srinath becomes 22nd from the left. How many boys are there in therow?(1) 19(2) 31(3) 33(4) 34 |
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Answer» Answer: 33 Step-by-step EXPLANATION: Srinath is 7th from the left and Venkat is 12th from the right Now . If they interchange their positions, Srinath becomes 22ND from the left. So, Srinath is 22 from left and 12 from right. So, he has 21 boys before him and 11 boys after him. So, total number of boys = number of boys before him +Number of boys after him + Srinath = 21+11+1 =33 Hence there are 33 boys . |
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| 14. |
A shopkeeper gives 11% discount on a television set, hence the cost price of it is Rs. 22,250. Then find the marked price of the television set. |
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Answer» Let the MARKED price be Rs a |
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| 15. |
Scalene triangle definition |
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Answer» A SCALENE triangle is a triangle that has three UNEQUAL sides, such as those illustrated above. SEE ALSO: Acute Triangle, Equilateral Triangle, Isosceles Triangle, OBTUSE Triangle, Triangle. CITE THIS AS: Weisstein, Eric W. " Scalene Triangle." |
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| 16. |
Point P and Q are taken on the opposite side AB and CD respectively of a parallelogram ABCD such that AP = CQ. show that AC and PQ bisect each other. |
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Answer» Let point of intersection of AC and PQ be E. |
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| 17. |
What is abbrivation of computer? |
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Answer» The WORD “computer” does not have an abbreviation. However, the abbreviation “CPU” STANDS for the Central PROCESSING UNIT of the computer. |
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| 18. |
A 225 metres train crosses a 275 metres long tunnel in 1 minute. what is the speed of the train in km/hr ? |
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Answer» LENGTH of train = 225 length of tunnel = 275 total length = 500 m speed = d/t = 500/60 = 50/6 m/s = 50/6 * 18/5 (multiply by 18/5 to convert it into km/h) = 30 km/h |
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| 19. |
The marks out of 100 obtained by a group of Students in a Science Test are 85 ,76,90,85,39,48,56,95,81,and 71 find the Mean marks obtained by the group |
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Answer» Mean= SUM of all the NUMBERS / TOTAL numbers =85+76+90+85+39+48+56+95+81+71/10 |
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| 20. |
The absolute value of an integer is always greater than the interger. is it true or false? |
| Answer» TRUE but SOMETIME it is ALSO same | |
| 21. |
Ek ped par ek chidiya baithi hai Dusre ped par bhi ek chidiya baithi hai Pahle ped par baitni wali chidiya dusri ped par baitne wale chidiya se kahti hai Ki tum mujhe ek chidiya de do to Mai tumari Bara bar Ho jaungi and dusre ped par baitne wali chidiya kahti hai Ki tum mujhe apni ek chidiya de do gi to Meri sankhya tumse dogni Ho jaungi To bato Ki dono ped par kitni chidiya baiti thi |
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Answer» उतर :- माना पहले पेड़ पर कुल X चिड़िया बैठी थी, और दूसरे पेड़ पर कुल y चिड़िया बैठी थी l तब, → (x + 1) = (y - 1) → x - y = (-2) → x = (y - 2) ------ EQN.(1) और, → (y + 1) = 2(x - 1) → y - 2x = (-3) ------ Eqn.(2) Eqn.(1) का मान Eqn.(2) में रखने पर, → y - 2(y - 2) = (-3) → y - 2y + 4 = (-3) → - y = (-3) - 4 → y = 7 अत, → x = 7 - 2 = 5 इसलिए, → दोनों पेड़ पर कुल चिड़िया = x + y = 5 + 7 = 12 (Ans.) यह भी देखें :- Shakuntla Devi, KARL Gauss, Archimedes could do a lot of quick maths since their young ages. Can you do better and find ... |
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| 22. |
ABCD is a parallelogram. AC and BD are the diagonals intersect at O. P and Q are the points of tri section of the diagonal BD. Prove that CQ||AP and also AC bisects PQ (see figure). |
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Answer»
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| 23. |
a cylinder with base raduis 8cm and height 2cm is melted to form a cone of height 6cm. the radius of the cone will be |
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Answer» HOPE it HELPS !!! SEE for sums like this just COMPARE volume of both given SOLIDS.... if u found it useful, plz mark it brainliest regards, Mohit khairnar |
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| 25. |
6-4√2/6+4√2 , Simplify the given number by rationalising the denominator. |
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Answer» |
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| 26. |
On a square handkerchief, nine circular designs each of radius 7 cm are made. Find the area of the remaining portion of the hand k |
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Answer» AREA of square - area of 9 circles Ar of square = side X side = 42 * 42 cm = 1764 cm sq Ar of one CIRCLE = Pie r^2 = 22/7 * 7 * 7 = 22 * 7 = 154 cm sq Such 9 circles are there so area of all 9 = 154 * 9 = 1386 cm sq Area of remaining portion = ar of square - ar of 9 circles = 1764 - 1386 = 378 cm sq |
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| 27. |
In adjacent figure, PR > PQ and PS bisects ∠QPR. Prove that ∠PSR > ∠PSQ. |
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Answer» PR > PQ & PS bisects ∠QPR To PROVE: ∠PSR > ∠PSQ Proof: ∠PQR > ∠PRQ — (i) (PR > PQ as angle opposite to larger side is larger.) ∠QPS = ∠RPS — (ii) (PS bisects ∠QPR) ∠PSR = ∠PQR +∠QPS — (iii) (exterior angle of a triangle EQUALS to the sum of opposite interior angles) ∠PSQ = ∠PRQ + ∠RPS — (iv) (exterior angle of a triangle equals to the sum of opposite interior angles) Adding (i) and (ii) ∠PQR + ∠QPS > ∠PRQ + ∠RPS ∠PSR > ∠PSQ [from (i), (ii), (iii) and (iv)] Hope this will help you....... |
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| 28. |
A merchand bought two calculators which together cost him 4800.He sold one of them at a loss of 15% and other at a gain of 19% . If the selling price of both the calculator is equal find the cost price of the lower priced calculator. |
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Answer» LET S.P. = a C.P. of 1ST calculator= a x 100/( 100 - 15 ) = a x 100/85 = 20a/17 C.P. of 2nd calculator = a x 100/( 100 + 19 ) = a x 100/119 = 100a/119 a/q 20a/17 + 100a/119 = 4800 240a/119 = 4800 a = 2380 C.P. Of 1st cal. = 20 x 2380/17 = 2800 C.P. of 2nd cal. = 4800 - 2800 = 2000 C.P. of lower priced calculator = Rs. 2000 Hope it HELP u plz mark as a brainliest |
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| 29. |
A letter is chosen from English alphabet. Find the probability of the letters being with A vowel or a consonant |
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Answer» TOTAL number of letters in English alphabet is = 26 Total number of VOWELS = 5 Total number of consonants is = 21 So, the PROBABILITY of getting a VOWEL = (total number of vowels)/(total number of letters) = 5/26 and the probability of getting a consonant = (total number of consonants)/(total number of letters) = 21/26 # |
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| 30. |
In how many years ₹ 700 will amount to ₹ 847 at a compound interest rate of 10 p.c.p.a. |
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Answer» GIVEN Principal Amount= P= 700 Rates of interest PER annum= i =10% p.a Time= N = ? Compounded amount= 847 We KNOW that Compound amount = P(1+i)^n 847 =700[ (1+10/100)^n 847 =700[(1 + 0.1)^n 847 =700[ (1.1)^n 847 / 700=(1.1)^n 1.21= (1.1)^n we can write 1.21 as 1.1 ×1.1 =(1.1)^2 (1.1)^2= (1.1)^n Bases are equal equate the POWERS 2 = n...it takes 2 years for 700 to become 847 at 10.%p.a |
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| 31. |
A bag contains five green marbles, three blue marbles, two red marbles, and two yellow marbles. One marble is drawn out randomly.a) Are the four different colour outcomes equally likely? Explain.b) Find the probability of drawing each colour marble i.e. , P(green), P(blue), P(red) and P(yellow)c) Find the sum of their probabilities. |
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Answer» A) Four different colour outcomes are not EQUALLY likely as no. of balls in each color are different from each other. |
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| 32. |
SP of an article is three fourth of its CP what is loss percent |
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Answer» LET,s CP=Rs100 SP=3/4 then, SP=3/4×100=75 loss%=loss/CP×100 so, loss=100-75=25 then,25/100×100=25% so,1/4% or 25% |
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| 33. |
a fruit seller bought apples for rupees 1200 write the cost price of each apple in terms of X If 10 of the Apples were rotten and he sold each of the rest at rupees 10 more than the cost price of each write the selling price of x-10 apples if he had made profit of 60 rupees in this transaction form an equation in x solver to evaluate x |
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Answer» Let the number of apples BOUGHT be x then the COST price of each apple is 1200/x If 10 rot the new number is x - 10 The selling price for the remaining apples is 1200 + 60 = 1260 1260/(x - 10) is the selling price of each apple. This is EQUIVALENT to the cost price plus 10 which is as shown : 1200/x + 10 To solve for x, we equate the two. That is : 1200/x + 10 = 1260 / (x - 10) 1200 (x - 10) + 10x (x - 10) = 1260x 1200x - 12000 + 10x² - 100x = 1260x 1260x - 1200x + 100x - 10x² + 12000 = 0 10x² - 160x - 12000 = 0 Dividing through by 10 we have : x² - 16x - 1200 = 0 From this we solve for x using quadratic formula. The equation is THUS : x² - 16x - 1200 = 0 |
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| 34. |
Perimeter of a Rectangle is 22m write the given information in form of linear Equation in 2 variables also represent graphically ?? |
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Answer» I HOPE it can HELP you and PLEASE mark it brainliest and follow me |
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| 35. |
Ratna has ₹200 more than three times the amount Rafik has. If ₹ 300 from the amount with Ratna are given to Rafik, amount with Ratna will be 7/4 times the amount with Rafik. Find the initial amount with Rafik. To find the initial amount, complete the following activity.Solution: The amount with Ratna is ₹ 200 more than three times the amount with Rafik.Let the initial amount with Rafik be ₹ x. ∴ Ratna has ₹ .....∴ ₹ 300 from Ratna are given to Rafik.∴ Remaining amount with Ratna is .....∴ Now Rafik has ₹ ( x + 300)Now the amount with Ratna is 7/4 times the amount with Rafik∴ Amount with Ratna / Amount with Rafik = ...../.....∴ (3x - 100) / (x + 300) = ..... / .....∴ 4 ..... = 7 .....∴ 12x -400 = 7x + 2100∴ 12x - 7x = .....∴ 5x = .....∴ x = .....∴ Rafik initially has ₹ ..... with him. |
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Answer»
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| 37. |
The angle of depression of a point 100 m from the foot of the tree is 60 degrees. Find the height of the tree. explain with diagram.. |
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Answer» HEY there here is your answer... ANGLE of depression = Angle of ELEVATION = 60° base DISTANCE = 100m. from fig. hope it helps.... |
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| 38. |
Two supplementary angles differ by 50 find the measure of each angle |
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Answer» Let ONE supplementary be X |
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| 40. |
Who is *Marilyn* Manson? |
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Answer» hey.....dear....here is your.....answer......✨✨✨ Brian Hugh WARNER, known by his stage NAME, Marilyn Manson, is an AMERICAN singer, songwriter, musician, composer, actor, PAINTER, author, and former music journalist.✌️✌️✌️ |
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| 41. |
Write four solution of 2x+y=7 |
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Answer» Put x = 1 |
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| 42. |
A shepherd has 200 sheep with him. Find the number of sheeps with him after 3 years if the increase in number of sheeps is 8% every year. |
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Answer» HI , NUMBER of sheep in the bigginng = 200 increasing percent each year ( g ) = 8% Number of sheep after 3 years = 200[(100 + g )/100 ]³ = 200[( 100 + 8 )/100 ]³ = 200 × ( 108/100 )³ = 251.94 ≈ 251 I HOPE this helps you. : ) |
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| 43. |
P(x)=x2-5x-6 find the value of p(1),p(2),p(3),p(0),p(-1),p(-2),p(-3). |
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Answer» Hey MATE!! |
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| 44. |
Factorise 2x squared minus 5 x minus 12 |
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Answer» 2x² - 5x - 12 |
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| 45. |
Rationalize 1/root 3-root2-1 |
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Answer» FIRST TAKE ROOT3-ROOT2 IN BRACKET AND -1 IN OTHER . |
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| 46. |
a chord of length 24 cm is at a distance of 5 cm from the centre of the circle find the length of the chord of the same circle which is at a distance of 12 cm from the circle |
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| 47. |
PLS ANSWER IT FAST AND I WILL MARK IT AS BRAINLIEST....................Write the co-ordinates of a point1)RIGHT OF ORIGIN AND ON X-AXIS AT A DISTANCE OF 2 UNITS2)BELOW X-AXIS AND ON Y-AXIS AT A DISTANCE OF 8 UNITS |
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| 48. |
If angle A and angle B are acute angles such thattan A= tan B, then show that angle A= angle B No spam answerIf u know answer then write instead of earning points |
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Answer» Solution : - CONSIDER a right traingle ABC having two ACUTE angle °•° TANA = TanB ( Given) since , BC / AC= AC /BC => BC² = AC² => BC = AC so , TanA = 1 and similarly tanB = 1 And as we know that 1 = tan45° since, tanA = tan45° A = 45° Similarly tanB = tan45° B = 45° HENCE, A = B _____________________________ |
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| 49. |
A rainy day occurs once in every 25 days. Half of the rainy days produce rainbow. The percentage of days having no rainbow is |
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Answer» It is very easy the ANSWER is 50% . INCLUDING only RAINY days. |
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