Number System If R2 = S3 = K, where R, S and K are integers. Find the smallest positive integral value of K. (Greater than 1) 64 88 75 54 64 88 75 54 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 64
Number System The sum of the digits of a two-digit number is 12, and the difference between the number and the number obtained by interchanging the two digits of the number is 18. Find the number. 12.5 50 25 75 12.5 50 25 75 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be 10x + y.∴ x + y = 12 ...........(i)10x + y - (10x + x) = 18or 10x + y - 10y - x = 18or 9x - 9y = 18∴ x - y = 2From (i) and (ii), x = 7, y = 5∴ Number = 75
Number System (12.04 x 7.5 + 0.8 x 45) ÷ 3 = ? 42.6 54.7 42.1 45 42.6 54.7 42.1 45 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (90.3 + 36) ÷ 3 = 126.3/3 = 42.1
Number System 9 3/4 + 7 2/17 - 9 1/15 = ? 9 719/1020 7 719/1020 9 817/1020 7 817/1020 9 719/1020 7 719/1020 9 817/1020 7 817/1020 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Given sum = 9 + 3/4 + 7 + 2/17 - (9 + 1/15)= (9 + 7 - 9) + (3/4 + 2/17 - 1/15)= 7 + (765 + 120 - 68)/1020 = 7 817/1020
Number System Find the nearest to 25268 which is exactly divisible by 467? 25308 25208 25218 25228 25308 25208 25218 25228 ANSWER DOWNLOAD EXAMIANS APP
Number System How many numbers up to 100 and 300 are divisible by 11? 20 21 18 22 20 21 18 22 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (300 – 100)/11 = 200/11 = 18 2/1118 Numbers
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