Number System 217 * 217 + 183 * 183 = ? 79698 81268 80698 80578 79698 81268 80698 80578 ANSWER DOWNLOAD EXAMIANS APP
Number System √343 = ? 18 20 19 21 18 20 19 21 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = √343 = 18
Number System On multiplying a number by 7, the product is a number each of whose digits is 3. The smallest such number is: 48619 47719 47619 47649 48619 47719 47619 47649 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP By hit and trail, we find that47619 * 7 = 333333.7) 333333 (47619 333333---------------- 0
Number System Of the three numbers, second is twice the first and is also thrice the third. If the average of the three numbers is 44, the largest number is 44 38 56 72 44 38 56 72 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 72
Number System The sum and the product of two numbers are 25 and 144 respectively, the difference of the number is? 7 11 3 5 7 11 3 5 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x + y = 25xy = 144(x- y)2 = (x + y)2 – 4xy(x- y)2 = 625 – 576 => (x – y) = 7
Number System When 732 is subtracted form the square of a number, the answer that is obtained is 5280. What is the number? 99 101 97 103 99 101 97 103 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x2 - 732 = 5280 x2 = 5280 + (70+3)2 = 5280 + 4900 + 420 + 9 = 10609= 10000 + 2(100)(3) + 32 = (100 + 3)2x = 100 + 3 = 103.
EXAMIANS