Number System The sum of three consecutive numbers is 87. The greatest among these three number is: 28 30 29 26 28 30 29 26 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the numbers be x, x + 1 and x + 2 Then,x + (x + 1) + (x + 2) = 873x = 84x = 28Greatest number, (x + 2) = 30.
Number System A basket contains 5 blue, 4 green and 3 red ball. If three balls are picked at random, what is the probability that at least one is red ? 37/52 34/55 32/51 31/58 37/52 34/55 32/51 31/58 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Probability of having no red ball is9C3 / 12C3 = 21/55Probability of having at least one red ball is 1 - 21/55 = 34/55
Number System Which is the smallest fractions among the following ? 15/19 13/15 11/13 27/31 15/19 13/15 11/13 27/31 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 11/13 = 0.8461,13/15 = 0.8666,27/31 = 0.87,15/19 = 0.789
Number System How many figures are required for numbering the pages of a book containing 1000 pages? 3892 6489 2893 2883 3892 6489 2893 2883 ANSWER DOWNLOAD EXAMIANS APP
Number System Find the greatest four digit number which leaves respective remainders of 2 and 5 when divided by 15 and 24. 9974 9125 9565 None of these 9974 9125 9565 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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