Number System What is the sum of 1 + 2 + 3+ ... + 27 ? 378 343 382 396 378 343 382 396 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Sum = 27 x (27 + 1)/2= 27 x 28/2= 27 x 14= 378
Number System 124, 235, 447, 760, 1174, ? 1589 1689 1489 1389 1589 1689 1489 1389 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP +111, +212, +313, +414
Number System Two numbers are in the ratio 3:5. If 9 be subtracted from each, they are in the ratio of 9:17. The first number is: 36 30 27 18 36 30 27 18 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (3x-9):(5x-9) = 9:17 x = 12 => 3x = 36
Number System Find the least number which when divided by 35 and 11 leaves a remainder of 1 in each case. 388 391 386 384 388 391 386 384 ANSWER DOWNLOAD EXAMIANS APP
Number System The sum of the numbers is 264. If the first number be twice the second and third number be one-third of the first, then the second number is: 84 48 54 72 84 48 54 72 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the second number be x. Then, first number = 2x and third number = 2x/3.2x + x + 2x/3 = 26411x/3 = 264x = 72
Number System Find the greatest four digit number which leaves respective remainders of 2 and 5 when divided by 15 and 24. 9974 None of these 9125 9565 9974 None of these 9125 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.
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