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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. |
There was a game showcalled " The Big 20". A contestant is paidRs.5 for each correct answer, but mustback Rs.4 for each wrong answer. Afteranswering 20 questions on the show, student won Rs.55. How many questions did he answer correctly.A.13B.14C.15D.16 |
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Answer» Hey. The answer is:- C. 15 Thank you. PLEASE MARK the answer as BRAINLIEST. |
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| 2. |
Question number 3step by step |
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Answer» X = 9 MARK ME AS BRAINLIEST |
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| 3. |
The sum of some even numbers is starting from 2 is 420.find the number of even numbers added? |
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Answer» AP: 2, 4, 6.......... a=2, d=2, Sum=420, n=? We know, Sum= n/2 {2a + (n-1)d} 420= n/2 {2(2) + (n-1)2} 420= n/2 {4+2n-2} 420= n (2n+2) 2 420= n × 2(n+1) 2 420= n(n+1) 420= n²+n n²+n-420=0 n²+21n-20n-420=0 n(n+21)-20(n+21)=0 (n-20)(n+21)=0 n= 20 or -21 n cannot be negative Hence n=20. Hope it helps!!! :)
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| 4. |
Find the zero of polynomial p(x)=x2+3x |
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Answer» Answer: 0 or - 3 Step-by-step explanation: x^2+3x=0 x(x+3)=0 Hence, EITHER x=0 or x=-3 Therefore 0 and - 3 are zeroes of the polynomial.. Hope it helps.. PLEASE mark it BRAINLIEST.. |
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| 5. |
what do you understand by the term rationalising factor of an irrational number . write the R.F of (2-√3) |
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Answer» RATIONALIZING FACTORS of (2-root 3)is (2-root 3) |
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| 6. |
Form the smallest 4 dugit number using 8407 |
Answer» Answer:Smallest 4 DIGIT number = 4078 We could've taken "0" at the FIRST, but SINCE taking "0" won't make it a 4 digit number, we'll take the NEXT smallest number,i.e., 4 |
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| 7. |
The next term of the gp X,x^2+2,x^3+10 is |
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Answer» Answer: it is not GEOMETRIC PROGRESSION..please make sure that QUESTION asked is CORRECT |
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| 8. |
You have two resistors 10 ohm and 20 ohm what resistance can you get by combining the two |
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Answer» Heya Mate Step-by-step explanation: If we COMBINE the 2 resistors in series i.e. Rp=R1+R2 f the equivalent resistance will be 10ohms+20ohms=30ohms And APPLYING parallel resistance i.e 1/Rp=1/R1+1/R2 1/10+1/20=3/20 i.e.20/3ohms =6.67 ohms[approx] PLS mark as brainliest^_^ |
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| 9. |
Plzz answer this sum faster |
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| 10. |
If the degree of p(x) is n then write the maximum number of zeros |
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| 12. |
How to find maximum sum of ap 20+58÷3+56÷3+18+...... is |
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Answer» Answer: 68 Step-by-step explanation: 20+16+14+18(58\3=16;56\3=14 |
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| 13. |
Find the amount and compound interest on 4000 at 12% p.a for 2years compounded annually |
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Answer» A=p(1+r/100)n A=4000(1+12/100)2 4000×56×56/50×50 8×56×56/5=5017.6 |
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| 14. |
The eqution of line which are prallel to x axis and at the a distance of 2 by 3 from x axis is |
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Answer» Answer: as LINE is PARALLEL to x AXIS so its slope, m =0. and points are (0,2/3) now by eq of line having pts (X1,Y1) (Y-Y1 )=m(X-X1) HERE X1=0 Y1=2/3 SO Y-2/3=0 (X-0) Y-2/3=0 IS REQUIRED EQUATION OF LINE. i hope my answer may help you. please follow me to give me a support to help more people.
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| 15. |
What is The mean proportional between 1.4gms and 5.6gms? |
Answer» The mean proportional between 1.4 gms and 5.6 gms is 2.8 gms.Step-by-step EXPLANATION: To find : What is the mean proportional between 1.4 gms and 5.6 gms? Solution : Let x be the mean PROPORTION. So, 1.4, x, 5.6 be in continuous proportion. (Mean proportional terms)² = PRODUCT of extremes i.e. Therefore, the mean proportional between 1.4 gms and 5.6 gms is 2.8 gms. #LEARN more What is the mean proportional between 9 and 16 |
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| 16. |
(viii) (-12) X (-8) X (-6) |
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Answer» Hęřę įš ùř ąńšwęř....♥♡♥ Hope it helps.... |
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| 17. |
Find the median of 2.4.5.1.3 |
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Answer» SETTING the no. is ASCENDING order-1,2,3,4,5 counting the no. of DIGITS = 5 5/2= 2.5 that is digit -3 |
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| 18. |
If 2* X 4* = 83 (32), then find the value, x. |
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Answer» i can't say Step-by-step EXPLANATION: |
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| 19. |
Which is a smallest 2digit odd number |
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Answer» Answers is 11. Because some odd NUMBERS are: 1, 3, 5, 7, 9, 11, 13, 14...... But 11 is two digit SMALLEST odd number. It might HELP you... |
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| 20. |
If root 2+root7/root2-root7=a+broot14 find a,b |
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Answer» Step-by-step EXPLANATION: PLZ MARK this BRAINLIEST |
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| 21. |
Market price of a watch is Rs.1200.The shopkeeper gives a discount of 10% and then gives a discount of 10% and then gives a successive discount on the reduced rate again.The customer had paid only Rs.1026.What was the successive discount rate of the shopkeeper? |
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Answer» Answer: 5% Step-by-step explanation: CORRECTION in the question : 10% discount is only once Market price of a WATCH is Rs.1200.The SHOPKEEPER gives a discount of 10% then gives a successive discount on the reduced rate again.The customer had paid only Rs.1026. Market Price = Rs 1200 After First Discount = 1200 - (10/100)1200 = 1080 Then He SAYS D % Discount then Price = 1080 - (D/100)1080 = 1026 = > 1080 * 100 - 1080D = 1026*100 => 1080D = 100(1080 - 1026) => 108 D = 10 ( 54) => D = 10 /2 => D = 5 % |
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| 22. |
Find out the mean, median ,mode and range of the following data 10,5,9,5,6,7,9,2,9 |
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Answer» Answer: range biggest-smallest so 10-9=1 mode means REPEATING number so 9 is 3 times so 9 is more in the GIVEN data |
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| 23. |
Derive the formula for the sum of first n even natural numbers |
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Answer» Step-by-step explanation: Sum of First n Natural Numbers. ... Clearly, it is an ARITHMETIC Progression WHOSE first term = 1, last term = n and number of terms = n. Therefore, S = n2(n + 1), [Using the formula S = n2(a + l)] Solved EXAMPLES to find the sum of first n natural numbers. 1. |
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| 24. |
5. Find x in the following:(i) 5 x [(-6) + x] = 5 (- 6) + 5 x 10 |
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Answer» Step-by-step EXPLANATION: |
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| 25. |
Difference between t-test and f-test in regression |
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Answer» In general, an F-test in regression compares the fits of DIFFERENT LINEAR models. Unlike t-tests that can assess only one regression coefficient at a time, the F-test can assess multiple coefficients simultaneously. ... A regression model that contains no PREDICTORS is ALSO KNOWN as an intercept-only model. |
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| 27. |
4 x square + 20 + 25 what will the answer |
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Answer» Step-by-step EXPLANATION: |
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| 28. |
Who discovered the value of pi |
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Answer» HOLA here is your answer Step-by-step EXPLANATION: ARCHIMEDES of Syracuse Hope it helps mark me as brainlist☺❤ |
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| 29. |
five years ago a man was seven times as old as his son . five years hence the father will be three times as old as his son. find their present age |
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Answer» PLEASE MARK ME A BRAINLIEST |
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| 30. |
(vi) (-10) x ( x (-17) |
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Answer» heya mate there's your answer -10×(-17) =10×17 (minus ×minus =plus) =170 hope it helps you Thank you |
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| 31. |
Simplity (3x+2y+7z)^2 |
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Answer» |
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| 32. |
Factories 3х4 – 243 |
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Answer» Answer: 3*4-243 =12-243 = - 231 |
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| 34. |
The value of 0.03^-2×0.000027^3 is ? |
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Answer» -0.00000486 is the ANSWER because 0.03(-2)=-0.06 and (0.000027)3=0.000081 so, MULTIPLYING both, we GET -0.00000486 as the answer Hope it HELPS:) |
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| 35. |
Definition of solution of an equation |
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Answer» An EQUATION is an algebraic EXPRESSION which typically relates unknown variables to other variables or constants. For example, x + 2 = 15 is an equation, as is y2 = 4. The solution, or ROOT, of an equation is any value or set of values that can be substituted into the equation to make it a true STATEMENT.
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| 36. |
Pls help me in this question I not understand nicely |
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Answer» the mother is 38 and she is older than her child by 4 time and plus FIVE years and LET the SON age is x |
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| 37. |
Definition of linear equation in one variable |
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Answer» Answer: LINEAR equation in one VARIABLE is written in the form ax +b =0 where a b are real numbers and a and b both cannot be ZERO |
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| 38. |
What is international place system |
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Answer» INTERNATIONAL place SYSTEM STARTS from RIGHT first period is onesconsisting of THREE numbers |
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| 39. |
Definition of algebraic expressions |
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Answer» An algebraic expression is a mathematical phrase that can contain ordinary numbers, variables (like x or y) and operators (like add,subtract,multiply, and DIVIDE). Here are some algebraic expressions: a + 1. a - B. 3x. HOPE IT HELPS YOU BUDDY..... Be happy..... Take care..... @dhruvchaudhary38 |
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| 40. |
Prove that root 5 minus root 3 is not a rational number |
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Answer» in this u can change PLUS SIGN into minus HOPE it would help u little |
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| 41. |
A cheetah starts from rest,and accelerates at 2 meters per second square for 10 seconds.calculate the final velocity and the distance traveled |
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Answer» Answer: ) acceleration = a = 2m/s² starting velocity = u = 0m/s final velocity = V = ? time = t = 10 sec a = v-u/t 2 = v-0/10 2×10 = v 20 m/s = v final velocity = v = 20m/s b) velocity = v = 20m/s time = t = 10 secl distance = d = ? v = d/t v × t = d 20×10 = d 200 m = d/ the distance TRAVELED is = d = 200 metre Click to let others KNOW, how helpful is it Read more on Brainly.in - brainly.in/question/3373390#readmore Step-by-step explanation: |
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| 42. |
Find the smallest number which when devided by 15, 20, 36, 48 has in each case 8 as the remainder |
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Answer» 36 is the answer of this QUESTION |
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| 44. |
Choose the correct option for eacha) The value of (0.03)-2 *(0.000027) is(0) (0:03); (ii) (0.03) |
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| 45. |
Find the perimeter.... |
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Answer» 540m Step-by-step explanation: GIVEN ratio of LENGTH :breadth is 5:4 Let the length be 5x and breadth be 4x given area is 18000 IMPLIES Length ×breadth =18000 (5x)×(4x)=18000 20x^2 =18000 X^2 =900 IMPLIES X=30 LENGTH =5x=5×30=150 Breadth =4x=4×30=120 Perimeter =2(length +breadth) Perimeter =2(150+120) Perimeter =2×270 Perimeter =540m If you like my answer then PLEASE brainliest it :) |
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| 46. |
4,9,25,49,....fill the blanks |
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Answer» Hey there!! As this pattern explains, it is the squares of the prime numbers STARTING from 2. 4 = 2² 9 = 3² 25 = 5² 49 = 7² The next prime numbers after 7 are 11, 13 , 17, 19 Hence, the next numbers in the SEQUENCE would be : 121 , 169 , 289 and 361.. ( it goes on) |
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| 48. |
In a triangleABC, if 3angleA = 4angleB = 6angleC then A:B:C= ?Find answer in ratio? |
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Answer» Given: In ∆ABC , 3∠A= 4∠B= 6∠C Let x= 3∠A= 4∠B= 6∠C X=3∠A ∠A= x/3 X=4∠B ∠B= x/4 X=6∠C ∠C= x/6 By ANGLE sum property ∠A+∠B+∠C= 180° Put the value of ∠A, ∠B, ∠C X/3+x/4+x/6= 180° L.c.m of 3,4,6 = 12 (4x + 3x +2x) /12 = 180° 9x = 12 × 180 X= (12× 180) /9 X= 240° ∠A= x/3 ∠A= 240/3 = 80° ∠B= x/4 ∠B= 240/4= 60° ∠C= x/6 ∠C= 240/6 = 40° _____________________________ Hence the angles be ∠A=80° ∠B=60° ∠C= 40° ratio = 80 : 60 : 40 = 4 :3 :2 Hope this will HELP you..... |
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| 49. |
Factrise:4x²+4divide3x + 3 |
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Answer» it's your ANSWER |
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| 50. |
4. Write the laws for the following operations. Onehas been done for you.(a) Addition(b) Subtraction(c) Multiplication(d) Division |
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Answer» Answer: Addition - There are four mathematical properties which involve addition. The properties are the commutative, associative, additive IDENTITY and distributive properties. Additive Identity Property: The sum of any number and zero is the original number. For example 5 + 0 = 5. Subtraction - Properties of Subtraction. Some properties of subtraction of whole numbers are: Property 1: If a and b are TWO whole numbers such that a > b or a = b, then a – b is a whole number. Multiplication - Properties of Multiplication. There are four properties involving multiplication that will HELP make problems easier to solve. They are the commutative, associative, multiplicative identity and distributive properties. Multiplicative Identity Property: The product of any number and one is that number. Division - There are four (4) basic properties of real numbers: namely; commutative, associative, distributive and identity. These properties only APPLY to the operations of addition and multiplication. That means subtraction and division do not have these properties built in. |
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