Number System (12.04 x 7.5 + 0.8 x 45) ÷ 3 = ? 54.7 42.6 45 42.1 54.7 42.6 45 42.1 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (90.3 + 36) ÷ 3 = 126.3/3 = 42.1
Number System The sum of two numbers is 25 and their difference is 13. Find their product. 104 325 315 114 104 325 315 114 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 If R2 = S3 = K, where R, S and K are integers. Find the smallest positive integral value of K. (Greater than 1) 88 75 64 54 88 75 64 54 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 64
Number System In how many different ways can the letters of word "COLLEGE" be arranged ? 1240 1260 1280 1300 1240 1260 1280 1300 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Number of ways = 7!/2!2! = 1260(∵ L and E come twice)
Number System How many figures are required to number the pages the pages of a book containing 365 pages? 987 977 897 967 987 977 897 967 ANSWER DOWNLOAD EXAMIANS APP
Number System The difference between the two digit number and the number obtained by interchanging its digits is 54. The difference between the digits is? Nothing can be said. 4 6 1 Nothing can be said. 4 6 1 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (10x + y) – (10y + x) = 54x – y = 6
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