Number System (12.11)2 + (?)2 = 732.2921 20.2 24.2 14.2 17.2 20.2 24.2 14.2 17.2 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 24.2
Number System What is the missing number in this series? 8 2 14 6 11 ? 14 6 18 12 3 9 7 2 3 9 7 2 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 9
Number System A two-digit number is such that the product of the digits is 8. When 18 is added to the number, then the digits are reversed. The number is: 42 18 24 81 42 18 24 81 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the ten's and unit's digit be x and 8/x respectively. Then, (10x + 8/x) + 18 = 10 * 8/x + x 9x2 + 18x - 72 = 0 x2 + 2x - 8 = 0 (x + 4)(x - 2) = 0 x = 2 So, ten's digit = 2 and unit's digit = 4. Hence, required number = 24.
Number System If the difference between a number and its three-fourth is 18, find the number. 61 68 57 72 61 68 57 72 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x.According to the question,x - 3x/4 = 18= x/4 = 18= x = 4 x 18 = 72
Number System On dividing number by 357, we get 39 as remainder. On dividing the same number by 17, what will be the remainder? 0 5 3 11 0 5 3 11 ANSWER DOWNLOAD EXAMIANS APP
Number System What is the value of ? in the following equations ? 72/? = ?/50 40 80 60 100 40 80 60 100 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (?)² = 72 x 50= (6 x 6 x 2) x (5 x 5 x 2)= (6 x 5 x 2)² = (60)²∴ ? = 60
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