Number System Find the greatest four digit number which leaves respective remainders of 2 and 5 when divided by 15 and 24. 9974 9125 None of these 9565 9974 9125 None of these 9565 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Since the difference between the divisors and the respective remainders is not constant, back substitution is the convenient method. None of the given numbers is satisfying the condition.
Number System If the fractions8/5,7/2,9/5,5/4,4/5 are arranged in descending order of their values, which one will be fourth? 7/9 1/3 11/13 5/4 7/9 1/3 11/13 5/4 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 5/4
Number System The sum and the product of two numbers are 25 and 144 respectively, the difference of the number is? 11 5 7 3 11 5 7 3 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x + y = 25xy = 144(x- y)2 = (x + y)2 – 4xy(x- y)2 = 625 – 576 => (x – y) = 7
Number System The average of five consecutive even numbers A, B, C, D and E is 42. What is the product of B and D ? 4589 2476 3289 1760 4589 2476 3289 1760 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP A + B + C + D + E/5 = 42∴ C = 42, ∴ B = 40, ∴ D = 44∴ B x D = 40 x 44 = 1760
Number System What is the average of the following set of numbers ? 173, 192, 198, 204, 211, 223, 227 210 204 222 234 210 204 222 234 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Avg = 173 + 192 + 198 + 204 + 211 + 223 + 227/7 = 1428/7 = 204
Number System (12.11)2 + (?)2 = 732.2921 20.2 14.2 24.2 17.2 20.2 14.2 24.2 17.2 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 24.2
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