Number System 217 * 217 + 183 * 183 = ? 79698 80698 81268 80578 79698 80698 81268 80578 ANSWER DOWNLOAD EXAMIANS APP
Number System The average of five consecutive even numbers A, B, C, D and E is 42. What is the product of B and D ? 3289 1760 2476 4589 3289 1760 2476 4589 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP A + B + C + D + E/5 = 42∴ C = 42, ∴ B = 40, ∴ D = 44∴ B x D = 40 x 44 = 1760
Number System When 732 is subtracted form the square of a number, the answer that is obtained is 5280. What is the number? 99 97 103 101 99 97 103 101 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x2 - 732 = 5280 x2 = 5280 + (70+3)2 = 5280 + 4900 + 420 + 9 = 10609= 10000 + 2(100)(3) + 32 = (100 + 3)2x = 100 + 3 = 103.
Number System If one-third of one fourth of a number is 15, then three-tenth of that number is: 45 54 25 35 45 54 25 35 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x. Then,1/3 of 1/4 of x = 15x = 15 * 12 = 180So, required number = (3/10 * 180) = 54.
Number System 432+2170+35=? 678 729 523 494 678 729 523 494 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 494
Number System The square root of 3 + “5 is : “(5/2) + “(1/2) “3 /2 + 1/”2 “5 /2 - 1/”2 “3 /2 - 1/”2 “(5/2) + “(1/2) “3 /2 + 1/”2 “5 /2 - 1/”2 “3 /2 - 1/”2 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP “(5/2) + “(1/2)
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