Number System Thrice the square of a natural number decreased by 4 times the number is equal to 50 more than the number. The number is: 10 4 5 6 10 4 5 6 ANSWER DOWNLOAD EXAMIANS APP
Number System (4300731) - ? = 2535618 1765113 1675123 1865113 1775123 1765113 1675123 1865113 1775123 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let 4300731 - x = 2535618Then, x = 4300731 - 2535618 = 1765113
Number System 480% of 350 + 620% of 275 = ? 3385 2385 4385 5385 3385 2385 4385 5385 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 480 x 350/100 + 620 x 275/100= 1680 + 1705 = 3385
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 ? 21 years 15 years 18 years 25 years 21 years 15 years 18 years 25 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 Three times the first of three consecutive odd integers is 3 more than twice the third. The third integer is: 13 11 9 15 13 11 9 15 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the three integers be x, x + 2 and x+ 4.Then,3x = 2(x + 4) + 3x = 11Third integer = x + 4 = 15.
Number System In a pair of fractions, fraction A is twice the fraction B and the product of two fractions is 2/25. What is the value of fraction A? 1/5 1/25 Data inadequate 2/5 1/5 1/25 Data inadequate 2/5 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP A = 2B => B = 1/2 A, so, AB = 2/25 1/2 A2 = 2/25A2 = 4/25 A = 2/5
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