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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. |
If a + b = 7 and a - b = 3 find a and b |
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Answer» Answer: a+B=7 a-b=3 Step-by-step explanation: if for EXAMPLE 4+3=7 by same assuming 4-3=1 next assume a as 5 and b as 2 5+2=7 5-2=3 so a is 5and b is 3 .. |
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| 2. |
if alpha and beta are the zeros of the polynomial x square - p x + q then find the value of each of the following: 1) Alpha upon beta + beta upon Alpha , 2) alpha beta Cube + beta Alpha cube, Alpha cube beta square + Alpha square beta cube |
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| 3. |
Find the smallest decimal number by which 1638.4 has to be divided to make it a perfect cube |
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Answer» Answer: The smallest decimal number is 1.2309 Step-by-step explanation: LET us find the nearest cube number to 1638.4 11³ =1331 12³=1728 As 11³ is less than the number and 12³ is greater than the number 11³ is the cube number which is less than and nearer to the GIVEN number Let the number we neeeded to MULTIPLY be x. 1638.4÷ x= 1331 x=1638.4÷1331 x=1.2309 |
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| 4. |
Show that every positive odd integer is of the form 6n+1 , 6n+3, 6n+5. |
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Answer» (1).........a=bq+r a=6q+6 2 (3q) a=6q+2 (2)........a=2 (3q+1) a=6q+4 (3)........a=6q+r a=2 (3q+2) those number DIVISIBLE by 2 so,that no will be positive number |
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| 5. |
Find the value of x³-1/x³ if x²+1/x² =2 |
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Answer» Answer: 0 and 2 Step-by-step explanation: It can ALSO be done as By dividing X2 in x2 and 1 and then We GET the same VALUE of x =+-1 By putting this value we get answer i.e 0 and 2 |
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| 6. |
Largest 5 digit number having zero at tens place is |
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Answer» is 99909 |
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| 7. |
What is the meaning ofsupercalifragilisticexpliodocius |
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Answer» Answer: it is the LARGEST WORD in the world. we performed a SKIT on this. |
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| 8. |
In a parallelogram ABCD. if angle c=5y. and angle D=2y+19 find the value of y |
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Answer» Answer: SUM =180 Step-by-step explanation: equate and put u will getjsnznzndhs. if the other day, but the fact is, but it would like the way. if the other SIDE. the FIRST ONE is the most IMPORTANT thing to say |
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| 9. |
Simplify 0.089 ×0.76 ÷0.19 |
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Answer» Answer: 0.356 Step-by-step EXPLANATION: =0.06764÷0.19 =0.356 |
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| 12. |
If the sum of ages of Father and his son in years is 64 and twice I he difference of their ages in years is same as sum of ages then find the age of Father. |
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| 13. |
Find the value of the polynomial 7-2x+3x power 2 |
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Answer» Step-by-step explanation: The first term is, 3x^2 its coefficient is 3 . The middle term is, -2x its coefficient is -2 . The last term, "the constant", is +7 Step-1 : Multiply the coefficient of the first term by the constant 3 • 7 = 21 Step-2 : Find two FACTORS of 21 whose sum equals the coefficient of the middle term, which is -2 . -21 + -1 = -22 -7 + -3 = -10 -3 + -7 = -10 -1 + -21 = -22 1 + 21 = 22 3 + 7 = 10 7 + 3 = 10 21 + 1 = 22 Observation : No two such factors can be found !! CONCLUSION : Trinomial can not be factored |
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| 14. |
Evalute (-1/3+-2/3)×(3/5-1/4) |
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Answer» (-1/3-2/3)×(3/5-1/4) (-3/3)×(12-5/20) (-1/1)×(7/20) -7/20 or -0.35 |
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| 15. |
A cook uses fofteen 2 liter bottles of cooking oil in 4 weekss .if he decidedes to to buy 5 liter tins of cooking oil instead .how many tins of cooking oil will be use ovee a 10 week perioad if the rate at which he ises it remauns unchanged |
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Answer» ANSWER:is this a CORRECT QUESTIONS? Step-by-step EXPLANATION: |
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| 16. |
Find the HCF and LCM of 108 120 253 by prime factorisation method |
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Answer» Answer: 108=2*2*3*3*3 120=2*2*2*3*5 253=11*23 HCF(108,120,253)=1 LCM(108,120,253)=2*2*2*3*3*3*5*11*23 =273240 Step-by-step explanation: |
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| 17. |
The perimeter of a triangle is 60 cm. The longest side exceeds the shortest one by 10 cm.and the sum of the lengths of the longest and the shortest ones is twice the length of the other side. Find the lengths of the sides. |
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Answer» SHORTEST side = 15cm Longest side = 25cm Other side = 20cm Step-by-step explanation: FIRST we assume shortest side =x cm Longest side become=x+10cm Other side =x+5cm Perimeter=60cm Perimeter =sum of all sides By PUTTING values of sides We get the answer as SHOWN above Thank you |
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| 18. |
Cynthia invests some money which 5% compound interest |
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Answer» Step-by-step explanation: 100*5/100=5 first YEAR both CI & SI Both are same in SECOND year SI again same But CI will be change it will be charge same % on 1st year % and so on TILL year. |
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| 19. |
Identify the 2d 3d shapes from household waste with pictures |
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Answer» There are many things in the house hold waste but I mention 3 things which are following (1) The match box which is THREE dimensional SHAPE (2) The BOTTLE which is again a three dimensional shape (3) The page which can be consider as two dimensional is width of page is zero
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| 20. |
Estimate to the nearest 1000 32836+5317 |
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Answer» Answer: 38000 Step-by-step explanation: SMALLER no is 5317 Estimate 5317=5000 Estimate 32836 to the MULTIPLES of 1000=33000 Now ADD 33000 and 5000=38000 |
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| 21. |
How to do divide and check your answers |
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Answer» (÷).............................. |
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| 22. |
That shadow of atower standing on a levelGround is found to be 40 meter longer when the sun altitude is 30⁰ than when it is was 6o⁰find height of tower |
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Answer» Answer: Step-by-step explanation: let H be the height of the tower . x mand (x + 40 ) m be the length of the SHADOW at 30° and 60° altitude, respectively. for sun at 30° altitude , for sun at 60° altitude, now , PUT the value of h in equation. now, x + 40 = 3x 40 = 2X x = 20 m thus, |
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| 23. |
What is the term rationalization mean????? |
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Answer» Answer: the action of ATTEMPTING to EXPLAIN or JUSTIFY behaviour or an attitude with logical reasons, EVEN if these are not APPROPRIATE. |
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| 24. |
for any integer a &3,there exists unique integer q and r such that a=3q+r .find the possible values of r |
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Answer» Answer: Step-by-step explanation: b = 3 (Given) According to the concept of Euclid’s division Lemma, EVERY integer has a certain divisibility rule. It states that any positive integer say ‘a’ can be divided by any other positive integer say ‘ b’ in such a way that it will leave the REMAINDER ‘r’. It further states that for any two positive integers ‘a’ and ‘b’ there exists two unique whole numbers say ‘q’ and ‘r’ such that , a = bq + r, where 0≤ r < b. Where, a is the dividend, b is the DIVISOR, q is the quotient and r is the remainder. As per the question, since the integers are a and 3, thus Let the values that 'r’ can take = 0 ≤ r < 3. Therefore, the possible values 'r’ will be 0,1 and 2. |
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| 26. |
Find the missing number?, 1,19,1, when average(mean) is 7? |
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| 27. |
By what smallest number 90 must be multiplied so as to make it a perfect square |
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Answer» Answer: Step-by-step explanation: |
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| 28. |
Please answer the questionCustomer: Organisationa Voters: Politician'sb Docor :Hospitalc. Reader: Newspaperd. Lawyer: Court |
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| 29. |
The students of a school donated Rs. 1,28,881 to the Prime Minister's Relief fund.each student donated as many rupees as the number of students in the school,find the number of students in the school. |
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Answer» for this we have to FIND out SQUARE ROOT of 128881 = 359 STUDENTS |
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| 30. |
If x = -5 is a root of x*2/-5+2(x-k)=0 then findthe value of k. |
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Answer» ANSWER LIES in the ATTACHMENT. |
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| 32. |
LCM of 24,96,192 |
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Answer» Heyamate!! ✶⊶⊷⊶⊷⊷⊶⊷ ❍⊷⊶⊷⊶⊷⊶⊷✶ The, 24=2×2×2×3 96=2×2×2×2×2×2×3 192=2×2×2×2×2×2×2×3 so LCM=192 ✶⊶⊷⊶⊷⊷⊶⊷ ❍⊷⊶⊷⊶⊷⊶⊷✶ ⍖━━━━━━━━━━⍖ |
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| 33. |
4. A man standing at a point is watching the topof a tower, which makes an angle of elevation of 30The man walks some distance towards the tower andthen his angle of elevation is 60. If the height ofthe tower is 30 m. then find the distance movedby him |
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Answer» Answer: DISTANCE = 54.64m Step-by-step EXPLANATION: First APPLY tan in triangle ABD We get the VALUE of BD Then again apply tan on triangle ABC finally, by solving we get x =54.64m |
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| 34. |
3: Find the missing number 4,5, 16, ?, when average mean) is 8? |
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Answer» Answer: |
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| 35. |
with the help of figures find the maximum number of points of intersection of four lines and five lines in a plane |
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| 36. |
Find the zeroes and verify the relation 3x2-3√3x+2 |
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Answer» i can't UNDERSTAND you QUESTION YAAR |
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| 37. |
Pls answer step by step urgent......... |
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Answer» you can do it by ELIMINATION method hope it helps plz MARK BRAINLIEST |
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| 38. |
A girl goes to her friends house which is at a distance of 12 kilometre She covers half of the distance ataspeed of x km/hr and the remain-ing distance at a speed of (x + 2)km/hr. If she takes 2 hrs 30 minutes to cover the whole distance,find 'x'. |
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Answer» ANSWER:idk Step-by-step EXPLANATION: |
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| 39. |
(i) 21x +47 y = 11047x + 2ly = 162. solve |
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Answer» ANSWER:idk Step-by-step EXPLANATION: SORRY!!!! |
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| 40. |
State whether 1.456+ 1/9 is a rational number or not |
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Answer» Answer: 1.456*9+1. = 13,104 +1=13,105 13,105 is a RATIONAL NUMBER or not 5 is a IRRATIONAL number |
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| 42. |
Evaluate 15 correct up to two places of decimal. |
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Answer» here is your ANSWER. so answer is 3.87 |
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| 43. |
write the distance of any 5 planets from the Earth mark the period in Indian and international system |
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Answer» the distance from the earth and sun is ONE FIFTY million KILO METERS |
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| 44. |
Find the remainder when x cube + 3 X square + 4 x + 5 is divided by X + 5 |
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Answer» hiiiiiiiiiiiiiiiiiiiiiiiiiiiiii |
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| 45. |
---| એક વ્યક્તિએ 8% દરથી વાર્ષિક ચક્રવૃધ્ધિ વ્યાજે લોન લીધી. જો 2 વર્ષ બાદ તેમણે વ્યાજ રૂપે રૂ 2496 ચૂકવ્યા હોય તો તેણેકેટલી લોન લીધી હશે? |
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Answer» JE ka hai ?? dekh Bhai hamko nahi AATA pehoe hi SORRY .. dekho mujhe report bhi KAR sakte ho aap |
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| 46. |
Vikram borrowed rs.20000 from a bank at 10% per annum simple interest.He lent it to his friend Venkat at the same rate but compounded annually.Find his gain after 2 1/2 years |
Answer»
RS 380 Rs 410 Step-by-step explanation: Simple interest = P * R * n/100 P = Principle = Rs 20000 R = 10% per annum n = 2.5 Years Simple interest for 2.5 Years = 20000 * 10 * (2.5)/100 = Rs 5000 Compound interest = P ( 1 + r/100)ⁿ -p 20000(1 + 10 \100)^ 2.5 - 20000 by solving this we get 5380 Gain = Compound interest - Simple Interest => Gain = 5380 - 5000 => Gain = Rs 380 This is based on FORMULA of compound interest as this formula start compounding for a smaller PERIOD than compounding period but in actual compounding is done at per mentioned period only But if we do it other way Simple interest & Compound interest for 1st year = Equal = 20000 * 10 * 1/100 = Rs 2000 in SECOND year Simple interest = Rs 2000 again now compound interest will be calculated on interest gained also but compound interest = (20000 + 2000) * 10 * 1/100 = Rs 2200 Additional Compound interest = Rs 200 in 3rd year for 6 months = (0.5 Years) Simple interest = 20000 * 10 * 0.5/1000 = 1000 Compound interest = (20000 + 2000 + 2200) * 10 * 0.5/100 = 1210 Extra interest in 6 months for 3 rd year = 1210 - 1000 = Rs 210 Total extra interest = Rs 200 + 210 = 410 Gain = Rs 410 Here is ur answer hope it's helps u |
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| 47. |
How it solve power notation of 343/1000 |
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Answer» (7/10)^3 Step-by-step explanation: 343/1000 = 7^3/10^3 = (7/10)^3 |
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| 49. |
Presently ages of father and the son are in the ratio 6:1 respectively. Four years hence the ratio of their ages will become 4:1 respectively. What is the son's present age? |
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Answer» Answer: 6 and 36 Step-by-step EXPLANATION: Let the PRESENT age of SON be x and father be 6x then 6x + 4/x + 4 = 4/1 then cross multiplication 6x + 4 = 4(x + 4) 6x + 4 = 4x + 16 6x - 4x = 16 - 4 2x = 12 x = 6 Age of son = 6 Age of father = 6x = 6 * 6 = 36 |
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