Number System If the difference between a number and its 2/5 is 240, find the number. 400 440 480 360 400 440 480 360 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the no. be x Therefore x - 2x/5 = 240, Therefore, 3x/5 = 240Therefore, x = 240x5/3 = 400
Number System If the L.C.M of two numbers is 750 and their product is 18750, find the H.C.F of the numbers. 30 125 25 50 30 125 25 50 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP H.C.F = (Product of the numbers) / (Their L.C.M) = 18750/750 = 25.
Number System The sum of two numbers is 25 and their difference is 13. Find their product. 104 114 325 315 104 114 325 315 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
Number System If the fractions 1/7, 3/5, 2/5, 5/6 and 9/11 are arranged in descending order of their values, which one will be the fourth number? 3/5 4/5 1/5 2/5 3/5 4/5 1/5 2/5 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 1/4 = 14. 3/5 = 6.2/5 = 4.5/6 = 83.9/11 = 82.Therefore, 83 > 82 > 6 > 14
Number System What should come in place of the question mark (?) in the following number series ? 888 888 444 148 ? 7.4 29 35 37 33 29 35 37 33 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 888 ÷ 1 = 888888 ÷ 2 = 444444 ÷ 3 = 148148 ÷ 4 = 3737 ÷ 5 = 7.4
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