Number System If a number is subtracted from its square we get 272. Find the number? 22 17 24 14 22 17 24 14 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x2 – x = 272 => x =17
Number System How many numbers up to 300 and 700 are divisible by 2, 3 and 7 both together? 9 11 8 10 9 11 8 10 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (700 – 300)/42 = 9 22/42 => 9 Numbers
Number System 7432 ÷ 32 x ? = 2787 21 41 12 78 21 41 12 78 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 7432/32 x ? = 2787= ? = 2787 x 32/7432 = 12
Number System What is the difference between the largest number and the least number written with the figures 3, 4, 7, 0, 3? 70983 43983 43893 43883 70983 43983 43893 43883 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 74330 Largest30347 Smallest-------------43983
Number System If (83)² is subtracted from the square of a number, the answer so obtained is 8487. What is the number ? 163 179 146 124 163 179 146 124 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x Therefore, x² - (83)² = 8487x² = 8487 + (83)²x² = 8487 + 6889x² = 15376Therefore, x² = 15376 x = 124
Number System What is 432 times 119 ? 52408 50408 53408 51408 52408 50408 53408 51408 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP No. 432 x 119 = 51408
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