Number System (2560 x 1.4) +(7400 x 0.6) =? 8024 7234 6543 9160 8024 7234 6543 9160 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 8024
Number System What is the difference between the largest number and the least number written with the figures 3, 4, 7, 0, 3? 43883 43983 43893 70983 43883 43983 43893 70983 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 74330 Largest30347 Smallest-------------43983
Number System (800 / 64) * (1296 / 36) = ? 460 420 None of these 500 460 420 None of these 500 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Given Exp.= 800/64 * 1296/36 = 12.5 * 36 = 450
Number System Sum of the digits number is 8 and their product is 12. Find the difference between the digits? 4 6 2 None 4 6 2 None ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x + y = 8xy = 12(x – y)2 = (x + y)2 – 4xy (x – y)2 = 64 – 48 => (x – y) = 4
Number System If (83)² is subtracted from the square of a number, the answer so obtained is 8487. What is the number ? 179 124 163 146 179 124 163 146 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 Two numbers are in the ratio 3:5. If 9 be subtracted from each, they are in the ratio of 9:17. The first number is: 18 36 30 27 18 36 30 27 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (3x-9):(5x-9) = 9:17 x = 12 => 3x = 36
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