Number System In how many different ways can the letters of the word TEST' be arranged ? 12 10 16 8 12 10 16 8 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP The word TEST consists of 4 letters in which T comes twice ∴ Number of arrangements= 4!/2! = 4 x 3 x 2 x 1/2 x 1 = 12
Number System A, B, C, D and E are consecutive even numbers respectively. The average of 5 numbers is 82. What is the product of C and E ? 6373 6353 6383 6363 6373 6353 6383 6363 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x + x + 1 + x + 2 + x + 3 + x + 4 = 5 x 82= 5x + 10 = 410 = 5x = 400= x = 400/5 = 80 ∴ A = 80C = 82and E = 84= C x E = 82 x 84 = 6383
Number System The sum of two numbers is 25 and their difference is 13. Find their product. 325 315 114 104 325 315 114 104 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 Find the nearest to 25268 which is exactly divisible by 467? 25308 25228 25218 25208 25308 25228 25218 25208 ANSWER DOWNLOAD EXAMIANS APP
Number System Given √2 = 1.414, the value of √8 + 2√32 - 3√128 + 4√50 is 8.584 8.484 8.784 8.684 8.584 8.484 8.784 8.684 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 8.484
Number System Find the greatest four digit number which leaves respective remainders of 2 and 5 when divided by 15 and 24. 9565 9125 9974 None of these 9565 9125 9974 None of these 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.
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