Number System When the square of a number is substracted from (68)², the answer so obtained is 2508. What is the number ? 46 44 45 47 46 44 45 47 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (68)² - x² = 2508Therefore, x² = 4624 = 2508Therefore, x = root of 2116 = 46
Number System A certain number when divided by 39 leaves a remainder 20, what is the remainder when the same number is divided by 13? 0 5 7 11 0 5 7 11 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 39 + 20 = 59/13 = 7 (Remainder)
Number System If (72)² is subtracted from the square of a number, the answer thus obtained is 4617. What is the number ? 92 99 95 103 92 99 95 103 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x² - (72)² = 467Therefore, x² = 4617 + 5184Therefore, x² = 9801 Therefore, x = 99
Number System Given √2 = 1.414, the value of √8 + 2√32 - 3√128 + 4√50 is 8.784 8.484 8.684 8.584 8.784 8.484 8.684 8.584 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 8.484
Number System Simplify the 121 * 175 + 363 * 275 328100 363000 None of these 316600 328100 363000 None of these 316600 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 121 * 175 + 363 * 275 => 121 * 175 + 121 * 3 * 275121 * 175 + 121 * 825= 121 * (175 + 825) = 121000
Number System If three eighth of a number is 141. What will be the approximately value of 32.08% of this number? 60 120 90 160 60 120 90 160 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x * 3/8 = 141 => x= 376376 * 32.08/100 = 120
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