Number System √(17)² + (17)² + (5)² - 2 = ? 18 17 19 16 18 17 19 16 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = √49 + 289 + 25 - 2 = √361 = 19
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: 42 26 24 46 42 26 24 46 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 35%of ?=242 542 394 693 487 542 394 693 487 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 693
Number System Find the least value of 3x + 4y if x2y3 = 6. 3 6 10 7 3 6 10 7 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 10
Number System A number when, 28 subtracted from it reduces to its one third. What is the value of 50% of that number? 21 24 84 42 21 24 84 42 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 2/3 x = 28 => x = 4242 * 1/2 = 21
Number System What least number must be subtracted from 2641 so that the remainder left, when divided by 10,15 and 25, is 7 in each case ? 84 87 94 81 84 87 94 81 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP LCM of 10, 15, 25 = 150When we drive 2641 by 150 the remainder is 91.But the remainder should be 7.So, the number to be subtracted from 2641 is 91 - 7 = 84.
EXAMIANS