Number System Find the smallest number which should be multiplied with 520 to make it a perfect square. 120 55 None of these 30 120 55 None of these 30 ANSWER DOWNLOAD EXAMIANS APP
Number System √9216 + √15376 = ? 220 224 231 227 220 224 231 227 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = √9216 + √15376= 96 + 124= 220
Number System (1024—263—233)÷(986—764— 156) =? None of these 10 8 6 None of these 10 8 6 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 8
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: 24 42 26 46 24 42 26 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 (164 x 175) x ? = 258300 5 9 11 2 5 9 11 2 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 258300 / 164 x 175 = 9
Number System √(17)² + (17)² + (5)² - 2 = ? 19 17 16 18 19 17 16 18 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = √49 + 289 + 25 - 2 = √361 = 19
EXAMIANS