Number System If the product of two successive positive integers is 4692, what is the smaller number ? 70 64 66 68 70 64 66 68 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ∵ 68 x 69 = 4692
Number System How many figures are required for numbering the pages of a book containing 1000 pages? 2883 6489 3892 2893 2883 6489 3892 2893 ANSWER DOWNLOAD EXAMIANS APP
Number System If (72)² is subtracted from the square of a number, the answer thus obtained is 4617. What is the number ? 95 103 99 92 95 103 99 92 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x² - (72)² = 467Therefore, x² = 4617 + 5184Therefore, x² = 9801 Therefore, x = 99
Number System In a two-digit number, the digit in unit's place is two more than three times the digit in ten's place. If the sum of the two digits is 10, what is the number ? 28 24 18 22 28 24 18 22 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be 10x + y.∴ y = 3x + 2 .......(i)And, x + y = 10 ......(ii)From (i) and (ii), x = 2, y = 8∴ Number = 28
Number System 732.96 + 405.38 - 604.08 - 105.44 + 222.86 = ? 651.68 641.68 621.68 631.68 651.68 641.68 621.68 631.68 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 1361.20 - 709.52 = 651.68
Number System (444 x 44 x 4) ÷ 40 ? 2153.6 1953.6 2053.6 1853.6 2153.6 1953.6 2053.6 1853.6 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 444 x 44 x 4/40 = 1953.6
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