Number System If (17)3 is subtracted from the square of a number, the answer so obtained is 2143. What is the number ? 81 82 84 83 81 82 84 83 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x² - (17*17*17) = 2143or x² = 2143 + 4913 = 7056∴ x = 84
Number System A number when multiplied by five times of itself give the value equal to 1445. What is the number ? 18 15 16 17 18 15 16 17 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x x 5x = 1445= 5x² = 1445= x² = 289∴ x = 17
Number System How many numbers up to 300 and 700 are divisible by 2, 3 and 7 both together? 9 10 8 11 9 10 8 11 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (700 – 300)/42 = 9 22/42 => 9 Numbers
Number System In a fraction, twice the numerator is two more than the denominator. If 3 is added to the numerator and the denominator each, then the resultant fraction will be 2/3 .What was the original fraction 11/12 17/12 19/12 7/12 11/12 17/12 19/12 7/12 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 7/12
Number System How many figures are required for numbering the pages of a book containing 1000 pages? 3892 6489 2893 2883 3892 6489 2893 2883 ANSWER DOWNLOAD EXAMIANS APP
Number System 384×12×2=? 6123 8465 9216 7487 6123 8465 9216 7487 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 9216
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