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 ? 2476 4589 1760 3289 2476 4589 1760 3289 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 The sum of three consecutive even numbers is 252. What is the sum of the smallest and the largest numbers? 169 171 168 170 169 171 168 170 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 168
Number System (800 / 64) * (1296 / 36) = ? 420 None of these 460 500 420 None of these 460 500 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Given Exp.= 800/64 * 1296/36 = 12.5 * 36 = 450
Number System If (17)3 is subtracted from the square of a number, the answer so obtained is 2143. What is the number ? 82 81 83 84 82 81 83 84 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x² - (17*17*17) = 2143or x² = 2143 + 4913 = 7056∴ x = 84
Number System If (72)² is subtracted from the square of a number, the answer thus obtained is 4617. What is the number ? 92 103 95 99 92 103 95 99 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x² - (72)² = 467Therefore, x² = 4617 + 5184Therefore, x² = 9801 Therefore, x = 99
EXAMIANS