Number System How many of the following numbers are divisible by 132? 264, 396, 462, 792, 968, 2178, 5184, 6336 5 6 4 7 5 6 4 7 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 132 = 11 * 3 * 4Clearly, 968 is not divisible by 3None of 462 and 2178 is divisible by 4And, 5284 is not divisible by 11Each one of the remaining four numbers is divisible by each one of 4, 3 and 11.So, there are 4 such numbers.
Number System What will be the next number in the following number series ? 191 162 177 182 191 162 177 182 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 1² + 1, 3² + 3, 5² + 5, 7² + 7
Number System Which one of the following represents the sum of the first n even numbers? N2 N(N – 1) N(N + 1) N2+ 1 N2 N(N – 1) N(N + 1) N2+ 1 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP N (N + 1)
Number System If the three fourth of a number is subtracted from the number; the value so, obtained is 163. What is that number ? 692 689 652 678 692 689 652 678 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Number x (1 - 3/4) = 163∴ Number = 163 x 4 = 652
Number System The sum of three consecutive multiples of 3 is 72. What is the largest number? 21 24 27 36 21 24 27 36 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the numbers be 3x, 3x + 3 and 3x + 6.Then,3x + (3x + 3) + (3x + 6) = 729x = 63x = 7Largest number = 3x + 6 = 27.
Number System What should come in place of the question mark (?) in the following number series ? 888 888 444 148 ? 7.4 37 35 33 29 37 35 33 29 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 888 ÷ 1 = 888888 ÷ 2 = 444444 ÷ 3 = 148148 ÷ 4 = 3737 ÷ 5 = 7.4
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