Number System 35%of ?=242 542 487 693 394 542 487 693 394 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 693
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 ? 25 years 15 years 21 years 18 years 25 years 15 years 21 years 18 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 (2560 x 1.4) +(7400 x 0.6) =? 7234 9160 6543 8024 7234 9160 6543 8024 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 8024
Number System 1051.64 - 159.42 - 96.84 + 162.37 - 940.26 + 504 = ? 511.49 501.49 491.49 521.49 511.49 501.49 491.49 521.49 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 1718.01 - 1196.52 = 521.49
Number System (12)² - (4.4)² - (0.04)² = ? 125.6384 131.6384 124.6384 129.6384 125.6384 131.6384 124.6384 129.6384 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (12)² - (4.4)² - (0.04)²= 144 - 19.36 - 0.0016= 124.64 - 0.0016= 124.6384
Number System The sum of a number and its reciprocal is one-eighth of 34. What is the product of the number and its square root? 32 27 8 None of these 32 27 8 None of these ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x. Then,x + 1/x = 34/8 8x2 - 34x + 8 = 0 4x2 - 17x + 4 = 0 (4x - 1)(x - 4) = 0 x = 4required number = 4 * √4 = 4 * 2 = 8.
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