Number System (2560 x 1.4) +(7400 x 0.6) =? 9160 8024 6543 7234 9160 8024 6543 7234 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 8024
Number System 106 * 106 - 94 * 94 = ? 2000 1906 1904 2400 2000 1906 1904 2400 ANSWER DOWNLOAD EXAMIANS APP
Number System On multiplying a number by 7, the product is a number each of whose digits is 3. The smallest such number is: 47719 48619 47619 47649 47719 48619 47619 47649 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP By hit and trail, we find that47619 * 7 = 333333.7) 333333 (47619 333333---------------- 0
Number System Sum of the digits number is 8 and their product is 12. Find the difference between the digits? 2 4 6 None 2 4 6 None ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x + y = 8xy = 12(x – y)2 = (x + y)2 – 4xy (x – y)2 = 64 – 48 => (x – y) = 4
Number System A number when multiplied by five times of itself give the value equal to 1445. What is the number ? 17 16 18 15 17 16 18 15 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x x 5x = 1445= 5x² = 1445= x² = 289∴ x = 17
Number System 84 * 29 + 365 = ? 2436 2801 - 2071 - 2801 2436 2801 - 2071 - 2801 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP - 84 * (30 - 1) + 365= - (84 * 30) + 84 + 365= - 2520 + 449 = - 2071
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