Number System If (74)² is added to the square of a number the answer so obtained is 7780. What is the number ? 48 47 50 49 48 47 50 49 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x.or, x² + (74)² = 7780or, x² = 7780 - 5476 = 2304∴ x = 48
Number System The difference between two integers is 5. Their product is 500. Find the numbers. 21, 26 15, 20 20, 25 30, 25 21, 26 15, 20 20, 25 30, 25 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the integers be x and (x + 5). Then, x(x + 5) = 500 x2 + 5x - 500 = 0 (x + 25)(x - 20) = 0 x = 20So, the numbers are 20 and 25.
Number System If the following fractions 7/6, 6/7, 5/3, 8/13 and 6/5 are arranged in descending order, which will be the last in the series? 7/13 6/13 9/13 8/13 7/13 6/13 9/13 8/13 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 7/6 = 1.166, 6/7 = 0.857,5/3 = 1.66,8/13 = 0.615,6/5 = 1.2Therefore, 5/3 > 6/5 > 7/6 > 6/7 > 8/13
Number System 432+2170+35=? 494 523 729 678 494 523 729 678 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 494
Number System 64% of 2650+40% 0f 320=? 1578 1247 1824 2096 1578 1247 1824 2096 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 1824
Number System On dividing a number by 68, we get 269 as quotient and 0 as remainder. On dividing the same number by 67, what will be the remainder? 1 0 3 2 1 0 3 2 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Number = 269 * 68 + 0 = 1829267) 18292 (273 18291 -------- 1Required number = 1.
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