Number System What least number must be subtracted from 2641 so that the remainder left, when divided by 10,15 and 25, is 7 in each case ? 94 84 87 81 94 84 87 81 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP LCM of 10, 15, 25 = 150When we drive 2641 by 150 the remainder is 91.But the remainder should be 7.So, the number to be subtracted from 2641 is 91 - 7 = 84.
Number System If 35% of a number is 899.5, what is 68% of that number ? 1747.6 1847.6 1547.6 2247.6 1747.6 1847.6 1547.6 2247.6 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Suppose the number is x.Then 35% of x = 899.5∴ 68% of x = 68/35 x 899.5 = 1747.6
Number System In how many different ways can be the letters of the word PENCIL be arranged among themselves ? 510 720 640 860 510 720 640 860 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Total six letters are there and hence the number of arrangements = 6! = 6 x 5 x 4 x 3 x 2 x 1 = 720
Number System If one third of 3/4 of a number is 21. Then find the number? 84 630 840 63 84 630 840 63 ANSWER DOWNLOAD EXAMIANS APP
Number System The sum of five consecutive numbers is 190. What is the sum of the largest and the smallest number ? 76 73 75 74 76 73 75 74 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x + x + 1 + x + 2 + x + 3 + x + 4= 190= 5x + 10 = 190= 5x = 190 - 10 = 180= x = 180/5 = 36The largest number = 36 + 4 = 40∴ Required sum = 36 + 40 = 76
Number System 74698 + 365 + 85213 + 95 = ? 160361 160371 160351 160341 160361 160371 160351 160341 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 74698 + 365 + 85213 + 95 = 160371
EXAMIANS