Number System In a two-digit number, if it is known that its unit's digit exceeds its ten's digit by 2 and that the product of the given number and the sum of its digits is equal to 144, then the number is: 46 24 42 26 46 24 42 26 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the ten's digit be x. Then, unit's digit = x + 2. Number = 10x + (x + 2) = 11x + 2 Sum of digits = x + (x + 2) = 2x + 2 (11x + 2)(2x + 2) = 144 2x2 + 26x - 140 = 0 (x - 2)(11x + 35) = 0 x = 2Hence, required number = 11x + 2 = 24.
Number System A number when, 28 subtracted from it reduces to its one third. What is the value of 50% of that number? 84 21 24 42 84 21 24 42 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 2/3 x = 28 => x = 4242 * 1/2 = 21
Number System 2536+4851—?=3450+313 3624 4567 6784 5243 3624 4567 6784 5243 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 3624
Number System How many numbers up to 100 and 300 are divisible by 11? 20 22 18 21 20 22 18 21 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (300 – 100)/11 = 200/11 = 18 2/1118 Numbers
Number System Write the next number in the series : 14, 16, 13, 17, 12, 18, 11 .... 7 1 15 19 7 1 15 19 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 19
Number System 3√103823 = ? 52 41 47 44 52 41 47 44 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 3√103823 = 3√47 x 47 x 47 = 47
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