Number System In how many ways can 5 boys be chosen from 6 boys and 4 girls so as to include exactly one girl ? 58 56 60 54 58 56 60 54 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP One girl can be chosen in 4C1 = 4 ways and 4 boys can be chosen in 6C4 = 15 ways ∴ Total number of ways = 4 x 15 = 60 ways.
Number System A canteen requires 17 dozen of eggs per week. How many eggs will it require from January 1 to February 11 ? 987 525 820 1224 987 525 820 1224 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Number of days from Jan 1 to Feb 11th= 31 + 11 = 42 days = 6 weeks∴ Total eggs =17 x 12 x 6 = 1224
Number System What is the value of 8/11 of 5/7 of 96% of 28875 ? 12900 13800 15400 14400 12900 13800 15400 14400 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Number = 8 x 5 x 96 x 28875/11 x 7 x 100 = 14400
Number System {(742)² ÷ 36} ÷ 2 = ? 423.5 422.5 421.5 420.5 423.5 422.5 421.5 420.5 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = (174 x 174/36) ÷ 2 = 841/2 = 420.5
Number System What number should replace both the question marks (?) in the following question ? 85 83 84 82 85 83 84 82 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 84
Number System 3√103823 = ? 44 52 47 41 44 52 47 41 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 3√103823 = 3√47 x 47 x 47 = 47
EXAMIANS