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 64 75 54 88 64 75 54 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 64
Number System Find the smallest number which should be multiplied with 520 to make it a perfect square. 120 None of these 30 55 120 None of these 30 55 ANSWER DOWNLOAD EXAMIANS APP
Number System If A + B = 30 and AB = 94, What is the value of A² + B² ? 824 920 625 712 824 920 625 712 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (A + B)² = (30)² = 900A² + B² + 2AB = 900Therefore, A² + B² = 900 - 2 x 94 = 900 - 188 = 712
Number System Sum of the digits number is 8 and their product is 12. Find the difference between the digits? 4 2 6 None 4 2 6 None ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x + y = 8xy = 12(x – y)2 = (x + y)2 – 4xy (x – y)2 = 64 – 48 => (x – y) = 4
Number System 35 + 15 * 1.5 = ? 75 51.5 57.5 5.25 75 51.5 57.5 5.25 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Given Exp. = 35 + 15 * 3/2 = 35 + 45/2 = 35 + 22.5 = 57.5
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