Number System If (72)² is subtracted from the square of a number, the answer thus obtained is 4617. What is the number ? 103 92 99 95 103 92 99 95 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x² - (72)² = 467Therefore, x² = 4617 + 5184Therefore, x² = 9801 Therefore, x = 99
Number System If the product of two successive positive integers is 4692, what is the smaller number ? 70 66 68 64 70 66 68 64 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ∵ 68 x 69 = 4692
Number System If (182)² is added to the square of a number, the answer so obtained is 47765. What is the number ? 131 111 121 101 131 111 121 101 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the no. be xTherefore x² + (182)² = 47765Therefore x² = 47765 - (182)2 = 47765 - 33124Therefore x² = 14641, Therefore x = 121
Number System Two third of three- fifth of one fourth of a number is 24, what is 30% of that number? 90 69 42 72 90 69 42 72 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x * 2/3 * 3/5 * 1/4 = 24x = 240240 * 30/100 = 72
Number System 3√68921 = ? 21 31 41 51 21 31 41 51 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 3√68921= 3√41 x 41 x 41= 41
Number System Find the least value of 3x + 4y if x2y3 = 6. 7 6 10 3 7 6 10 3 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 10
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