Number System If 2^(2x-1) = 8^(3-x), then the value of x is: 9 5 2 6 9 5 2 6 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 2
Number System 96% of a number is 19584. What is 56% of that number ? 11324 11424 11224 11524 11324 11424 11224 11524 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x.According to the question.96% of x = 19584= x = 1958 x 100/96 = 20400∴ 56% of 20400= 20400 x 56/100= 11424
Number System 68375 + 72848 - ? = 34346 + 49569 57308 58308 59308 None of these 57308 58308 59308 None of these ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 68375 + 72848 - 34346 - 49569 = 141223 - 83915 = 57308
Number System The product of two natural numbers is 17. Then, the sum of the reciprocals of their squares is: 289 1/289 290/289 289/290 289 1/289 290/289 289/290 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the numbers be a and b. Then,ab = 17, a = 1 and b = 17So, 1/a2 + 1/b2 = (a2 + b2)/a2 b2 = (12 + 172)/(1 * 17)2 = 290/289
Number System If the sum of four consecutive numbers is 370, which the following is the third lowest number among them 92 91 90 89 92 91 90 89 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the four consecutive numbers be x, (x + 1), (x + 2), (x + 3) thenx + (x + 1) + (x + 2) + (x + 3) = 370= 4x + 6 = 370∴ x = 364/4 = 91∴ third lowest number among them = x + 1= 91 + 1 = 92
Number System If R2 = S3 = K, where R, S and K are integers. Find the smallest positive integral value of K. (Greater than 1) 88 75 54 64 88 75 54 64 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 64
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