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. |
Answer fastly ............ |
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Answer» ❤hope it HELPS you❤ ❤ PLZ MARK it as BRAINLIEST answer❤ |
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| 2. |
mr mehra sends his servant to buy oranges for RS 15.the servant having eaten 3 oranges on the way ,mr mehra pays 25 paise per orange more than market price.taking x as the number of oranges which mr mehra receives firm a quadratic equation in x ,hence find x. |
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Answer» Number of oranges = x Initial Cost of oranges = 15 rs Cost of 1 orange = (15/x) rs Number of oranges after 3 being eaten by the servant = (x - 3) Initial Cost of oranges = 15 rs Cost of 1 orange = (15/x-3) rs Extra money paid on each orange = 25 paise = 0.25 rs ∴ 15/(x - 3) - 15/x = 0.25 15 (x - x + 3) / x (x - 3) = 0.25 3 * 3 / x^2 - 3x = 0.05 multiply by 20 180 / x^2 - 3x = 1 180 = x^2 - 3x 0 = x^2 - 3x - 180 0 = x^2 + 12X - 15x - 180 0 = x (x + 12) - 15 (x + 12) 0 = (x - 15) (x + 12) x- 15 = 0 | x + 12 = 0 x = 15 oranges : Ans | x = -12 (REJECTED according to NATURE) Hope I helped |
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| 3. |
Subtract (-63) from (-236) |
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Answer» -273 Step-by-step EXPLANATION: =-236+63 =-273 |
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| 4. |
We need to find the two constitutive natural number , the sum of whose square is 181 |
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Answer» ANSWER: 13.45 is the SQUARE ROOT of 181. 6.45 + 7 = 13.45 |
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| 5. |
What should be added to (3/6+1/2-2/4) to get 1 |
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Answer» Step-by-step EXPLANATION: (3/6+1/2-2/4) =3/6+1/2-2/4 =6+6-6/12 =6/12 =1/2 Let number to be added to get answer 1 be x 1/2+x=1 x=-1/2+1 x=-1+2/2 x=1/2 The number to be added is 1/2. |
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| 6. |
Please help me regarding question no. 22 |
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Answer» Step-by-step explanation: Given:-ABCD is a Parallelogram where A(x,y) ,B(5,8) ,C(4,7) and D(2,-4) To find:-I) The coordinates of A ii) The equation of the diagonal BD Solution:-Given that ABCD is a Parallelogram where A(x,y) ,B(5,8) ,C(4,7) and D(2,-4) We know that In a Parallelogram the diagonals bisecting each other =>Mid POINT of AC = Mod point of BD i)Mid point of AC:-Let (x1, y1)=A(x,y)=>x1=x and y1 = y Let (x2, y2)=C(4,7)=>x2=4 and y2=7 We know that A(x1, y1) and (x2, y2) are the points then the mid point of the linesegment joining by the two points is M=[(x1+x2)/2 ,(y1+y2)/2] =>[(x+4)/2 ,(y+7)/2]------------(1) ii)Mid point of BD:-Let (x1, y1)=B(5,8)=>x1=5 and y1 = 8 Let (x2, y2)=D(2,-4)=>x2=2 and y2=-4 We know that A(x1, y1) and (x2, y2) are the points then the mid point of the linesegment joining by the two points is M=[(x1+x2)/2 ,(y1+y2)/2] =>[(5+2)/2 ,(8+(-4))/2] =>[(7/2 , (8-4)/2] =>(7/2 ,4/2) =>(7/2 ,2)-------------(2) From (1) & (2) Mid point of AC= Mid point of BD =>[(x+4)/2 ,(y+7)/2] = (7/2 ,2) On comparing both sides then =>(x+4)/2 = 7/2 and (y+7)/2=2 =>x+4 = 7 and y+7 = 4 =>x=7-4 and y=4-7 =>x = 3 and y= -3 The coordinates of A = (3,-3) iii) Equation of the diagonal BD:-Let (x1, y1)=B(5,8)=>x1=5 and y1 = 8 Let (x2, y2)=D(2,-4)=>x2=2 and y2=-4 We know that A(x1, y1) and (x2, y2) are the points then the equation is (y-y1)/(y2-y1) = (x-x1)/(x2-x1) =>(y-8)/(-4-8) = (x-5)/(2-5) =>(y-8)/(-12) = (x-5)/(-3) =>(y-8)/12 = (x-5)/3 On applying cross multiplication then =>12(x-5)=3(y-8) =>12x-60=3y-24 =>12x-60-3y+24=0 =>12x-3y-36 =0 =>3(4x-y-12) = 0 =>4x-y-12=0 The equation is 4x-y-12=0 Answer:-i) The Coordinates of A = (3,-3) ii)The equation of the diagonal BD = 4x-y-12=0 Used formulae:-
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| 8. |
Find hcf and lcm 12,15,18,11,10 by using fundamentals arthimetic therom |
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Answer» HCF=1 LCM=360 |
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| 9. |
Q.2 Write in expanded form:1-184310562-3568041 |
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Answer» Answer: 1 : 10000000+8000000+400000+30000+1000+50+62 : 3000000+500000+60000+8000+40+1MARK ME AS BRAINLIEST |
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| 10. |
use Euclid division lemma to show that square of any positive integer is either of form 3m or 3m+1 for some integer m |
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Answer» If a and b are 2 positive integers then, By USING Euclid's Division Lemma a = bq + r (where 0 ≤ r < b) Let a be the positive integer and b = 3 So, a = 3q + r (where 0 ≤ r < 3) Also, r is the integer which is greater or EQUAL to 0 and less than 3. So, r can be 0, 1 and 2. Case 1) If r = 0 then, a = 3q + 0 a = 3q Squaring both sides a² = (3q)² a² = 9q² a² = 3(3q²) Where 3q² = m → a² = 3m Case 2) If r = 1 a = 3q + 1 Squaring both sides a² = (3q + 1)² a² = (3q)² + (1)² + 2(3q)(1) a² = 9q² + 1 + 6q a² = 3(3q² + 2q) + 1 Where 3q² + 2q = m a² = 3(m) + 1 → a² = 3m + 1 Case 3) If r = 2 a = 3q + 2 Squaring both sides a² = (3q + 2)² a² = (3q)² + (2)² + 2(3q)(2) a² = 9q² + 4 + 12q a² = 9q² + 12q + (3 + 1) a² = 9q² + 12q + 3 + 1 a² = 3(3q² + 4q + 1) + 1 Where 3q² + 4q + 1 = m a² = 3(m) + 1 → a² = 3m + 1 Therefore, Squaring of any positive integer can be expressed in the form 3m or 3m + 1 for some integer m. Hence, proved |
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| 11. |
put the numbers from 1 to 7 into the circle and no two consecutive numbers are allowed to be joined to each other, e.g.3 cannot be joined directly to 2 or 4 |
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Answer» Answer: Find the SUM of the following arithmetic progressions: (i) 50, 46, 42, … to 10 terms (ii) 1, 3, 5, 7, … to 12 terms (iii) 3, 9/2, 6, 15/2, … to 25 terms (iv) 41, 36, 31, … to 12 terms (v) a + b, a – b, a – 3b, … to 22 terms (vi) (x – y)2, (x2 + Y2), (x + y)2, to 22 tams R D Sharma Solutions For Class 10 Maths Chapter 9 Arithemetic Progressions ex 9.6 - 1 (viii) – 26, – 24, – 22, …. to 36 terms Solution: In an A.P if the first term = a, common difference = d, and if there are n terms. Then, sum of n terms is given by: R D Sharma Solutions For Class 10 Maths Chapter 9 Arithemetic Progressions ex 9.6 - 2 (i) Given A.P.is 50, 46, 42 to 10 term. First term (a) = 50 Common difference (d) = 46 – 50 = – 4 nth term (n) = 10 R D Sharma Solutions For Class 10 Maths Chapter 9 Arithemetic Progressions ex 9.6 - 3 = 5{100 – 9.4} = 5{100 – 36} = S × 64 ∴ S10 = 320 (ii) Given A.P is, 1, 3, 5, 7, …..to 12 terms. First term (a) = 1 Common difference (d) = 3 – 1 = 2 nth term (n) = 12 R D Sharma Solutions For Class 10 Maths Chapter 9 Arithemetic Progressions ex 9.6 - 4 |
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| 12. |
State which of the following statement are true.(1) { } = 0 0= 0 |
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Answer» Option 1 is true Step-by-step explanation: Because its an empty SET |
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| 15. |
The x-coordinate of a point P is twice itsy-coordinate. If P is equidistant from Q(2, -5)and R(-3, 6), find the co-ordinates of P. |
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Answer» it's simple dude...... let the ordinates of P be y the then abcissa will be 2y {(2y-2)^2+(y+5)}^1/2={(2y+3)^2+(y-6)^2}^1/2 4y^2+4-8y+y^2+25+10y=4y^2+9+12y+y^2+36-12y 4-8y+25+10y=9+12y+36-12y 2y-6y+=45-29 4y=16 y=4 hence coordinates are(8,4) {EASIEST question} |
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| 16. |
Integral tan²x × twn²x dx.solve it |
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Answer» Answer: You can start by WRITING tan 2 ( x ) = sin 2 ( x ) cos 2 ( x ) ∫ tan 2 ( x ) d x = ∫ sin 2 ( x ) cos 2 ( x ) d x =
using: sin 2 ( x ) = 1 − cos 2 ( x ) you get: = ∫ 1 − cos 2 ( x ) cos 2 ( x ) d x = ∫ [ 1 cos 2 ( x ) − 1 ] d x = = ∫ 1 cos 2 ( x ) d x − ∫ 1 d x =
= tan ( x ) − x + c
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| 18. |
Plz answer my friend it's too much urgent |
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Answer» Answer: 4x+3y=2100 Step-by-step explanation: 5x+2y=1750 SOLVING by ELIMINATION SUBSTITUTION we GET ANSWET |
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| 19. |
If A = 3 3÷8 and B = 6 5÷8 ,find A÷B and B÷A |
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Answer» Answer: A÷B is 33÷65 B÷A is 65÷33 Please mark my answer as BRAINLIEST answer |
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| 20. |
Write the numbers frim 1 to 25 on beside the other which digit is the 25 place? |
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Answer» Answer: The answer is 7. it is in the 25 th place Step-by-step explanation: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25. please MARK me as brilliant |
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| 21. |
find the compound interest and the amount on rupees 5,000 at the annual interest rate of 8% for 2.5 year |
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Answer» amount=3149.28 c.i=1850.72 Step-by-step explanation: 1 |
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| 24. |
Find 10 rational numbers between -3/11 and 8/11 |
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Answer» -2/11,-1/11,0,1/11,2/11,3/11,4/11,5/11,6/11,7/11 Step-by-step EXPLANATION: |
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| 25. |
Find sum of 8/9 , 3/9 and 1/9 |
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Answer» 8/9 + 3/9 + 1/ 9 = 12/9 = 4/3 Step-by-step explanation: here is your answerI Need one BRAINLIEST answer...PLEASE MARK me as brainliest ..... |
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| 26. |
What number must be taken away from the sum of 67,89,678 and 12,34,567 to make it equal to the difference of the given numbers? |
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Answer» Answer: 2469134 Step-by-step EXPLANATION: a+b - X = a- b. |
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| 27. |
The midpoint of tan 45 degree cot 45 degree sin0 degree cos 90 degree is |
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Answer» Step-by-step explanation: |
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| 28. |
Draw bar graph to the given informationThe positive corona cases accordingto country wise (these are found offnot accurate)* Spain - 200 200Italy - 186000India – 14000America - 150000china – 81000which country has least positivecases. |
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Answer» hshshehdhxjxidhdbhriudgdhuejehdnjdjdj Step-by-step EXPLANATION: hshshbsshhshsh |
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| 29. |
Find the value of each of the following |
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Answer» Step-by-step EXPLANATION: (16)¼ (4^4)^¼ =4 Hope it will help |
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| 31. |
Exercise 1.3 of rational numbers of class 8th |
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Answer» where is your QUESTION ? Step-by-step EXPLANATION: |
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| 32. |
Draw a rough graph of linear equation yis equal to -3 |
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Answer» Step-by-step EXPLANATION: |
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| 33. |
25cos^x + 25 sin^x= |
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Answer» 25 Step-by-step explanation: 25cos^2x+25sin^2× 25cos^2x+25sin^2×=25(cos^2x+sin^2x) 25cos^2x+25sin^2×=25(cos^2x+sin^2x)[sin^2+cos^2=1]...Trignometric identity 25cos^2x+25sin^2×=25(cos^2x+sin^2x)[sin^2+cos^2=1]...Trignometric identity=25(1) 25cos^2x+25sin^2×=25(cos^2x+sin^2x)[sin^2+cos^2=1]...Trignometric identity =25(1)=25 25 is your answer. |
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| 34. |
If x, yand z are three different number then prove that :x²+y²+z²-xy-yz-zx is always positive. |
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Answer» i took DIFFERENT NUMBER and I have DONE Calculation and the answer is POSITIVE |
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| 35. |
1=(-5-k)/(k-3) please solve this plz |
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Answer» k - 3 = -5 - k 2k = -2 ∴ k = -1 : ANS |
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| 36. |
Solve it is a master mind questions and someone gave it as a dare to complete |
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Answer» this is answer.... |
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| 37. |
Using elementary transformation find the inverse of A=[(1,2,-2)(-1,3,0)(0,-2,1)] |
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Answer» Answer: A=[(-1,-2,2)(1,-3,0)(0,2,-1)]0 IS NOT INVERTED BECAUSE IT IS NEITHER POSITIVE NOR NEGATIVE...PLZ FOLLOW ME I'LL FOLLOW YOU BACK.PLZ MARK ME AS BRAINLIEST. |
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| 38. |
- Divide 80 into two parts so that the greaterpart is 4 times the smaller. |
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Answer» Answer: 16:64 Step-by-step explanation: 64is 4TIMES of 16; 64+16=80 |
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| 39. |
Find the value of z in the adjoining figure , if a || b and l || m and a is a transversal |
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Answer» היכן הדמות הצמודה שלך... |
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| 40. |
If f(x)=x^2+x+1 then find f(x).f(x-1) |
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Answer» f(X)=x^2+X+1 f(x-1)= ? FIRST STEP is to find the VALUE of f(x-1) f(X)=x^2+X+1 f(x-1)=x^2+X by PUTTING the value f(X).f(x-1) (x^2+X+1)(x^2+X) by MULTIPLYING this x^4+X+2x^3+2x^2 |
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| 41. |
Find the equation of the line whichcuts a positive intercept of 4 unitson the axis of x and has a slope of 1. |
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Answer» Step-by-step explanation: he was a good GUY with a game of power in his PAST and their |
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| 42. |
एक नाव 45 किमी धारा के साथ 9 घंटे में 54 किमी धारा के विपरीत 18 घंटे में जा सकती है| शांत जल में नाव की गति क्या होगी? |
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Answer» एक नाव 45 किमी धारा के साथ 9 घंटे में 54 किमी धारा के विपरीत 18 घंटे में जा सकती है| शांत जल में नाव की गति क्या होगी?
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| 43. |
When rational number have different dinomenater 4/9 + 7/4please answer me |
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Answer» Step-by-step EXPLANATION: just like the ONE that WOULD have to do that anymore but he would have to be SURE the president 5is and the other side and how |
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| 44. |
Find the value of x with explanation |
Answer» here is your answer...... |
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| 45. |
DefineCartesian product ofthree sets. |
Answer» heya!Cartesian Product of 3 sets. elementary-set-theory products. LET A, B, and C be sets where A={1,2}, B={0,1}, and C={0,4}pls mark it as BRAINLIST answers |
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| 46. |
Represent5/3onnumbleline. |
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Answer» 5/3 = 1.6 and some THING |
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| 47. |
Using elementary transformation find the inverse of A= [(3,2)(7,5)] |
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Answer» Answer: Using ELEMENTARY TRANSFORMATIONS, find the INVERSE of the following matrix : ⎡⎣⎢12−225−437−5⎤⎦⎥ |
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| 48. |
Express 3/5 as rational number with numerator - 21 |
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Answer» Answer:MULTIPLE both NUMERATOR DENOMINATOR by 7 |
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| 49. |
(5,m) is solution of x+y=5 and 2x_3y then find m value |
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Answer» Answer: 0 Step-by-step EXPLANATION: |
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| 50. |
if x and y are two rational numbers then ....................... is a rational numbers between x and y |
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Answer» X+y/2 is the RATIONAL no. between x and y . Step-by-step EXPLANATION: |
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