Number System What is the least number, which is perfect square but contains 2700 as its factor? 1800 10800 5400 2700 1800 10800 5400 2700 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 900 * 3 * 3 = 8100
Number System 3√103820 x 3√274620 = ? 3055 3035 3045 3065 3055 3035 3045 3065 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 3√103820 = 47 and 3√274620 = 65 ∴ ? = 47 x 65 = 3055
Number System 4/6 of 6/5 of 5/7 of a number is 96. Find the number. 162 170 164 168 162 170 164 168 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x.∴ x x 4/6 x 6/5 x 5/7 = 96∴ x = 96 x 6 x 5 x 7/4 x 6 x 5 = 168
Number System If (35)² is added to the square of a number the answer so obtained is 1394. What is the number ? 11 15 17 13 11 15 17 13 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x Therefore, x² + (35)² = 1394Therefore, x² = 1394 - (35)² = 1394 - 1225 = 169Therefore, x = √169 = 13
Number System The sum of two numbers is 25 and their difference is 13. Find their product. 114 104 325 315 114 104 325 315 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the numbers be x and y. Then x + y = 25 and x - y = 13.x = 19; y = 6xy = 19 * 6 = 114
Number System What is the difference between the largest number and the least number written with the figures 3, 4, 7, 0, 3? 43893 43883 43983 70983 43893 43883 43983 70983 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 74330 Largest30347 Smallest-------------43983
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