Number System A number when multiplied by five times of itself give the value equal to 1445. What is the number ? 18 17 16 15 18 17 16 15 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x x 5x = 1445= 5x² = 1445= x² = 289∴ x = 17
Number System The sum of the present age of a father and a son is 60 years. Five years before, the age of the father was four times that of son. What is the present age of the son ? 18 years 21 years 25 years 15 years 18 years 21 years 25 years 15 years ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the father's age be x and son's age yTherefore, x + y = 60 ....................(i)Five years back, (x - 5) = 4 (y - 5)x - 4y = - 15 ......................(2)Solving (1) and (2), x = 45 and y = 15
Number System 3√68921 = ? 31 41 21 51 31 41 21 51 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 3√68921= 3√41 x 41 x 41= 41
Number System In a division sum, the quotient is 120, the divisor 456 and the remainder 333, find the dividend? 5553 56053 55053 50553 5553 56053 55053 50553 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 120 * 456 + 333 = 55053
Number System Given √2 = 1.414, the value of √8 + 2√32 - 3√128 + 4√50 is 8.784 8.484 8.584 8.684 8.784 8.484 8.584 8.684 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 8.484
Number System 4/6 of 6/5 of 5/7 of a number is 96. Find the number. 162 170 164 168 162 170 164 168 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x.∴ x x 4/6 x 6/5 x 5/7 = 96∴ x = 96 x 6 x 5 x 7/4 x 6 x 5 = 168
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