Number System (444 x 44 x 4) ÷ 40 ? 1953.6 1853.6 2053.6 2153.6 1953.6 1853.6 2053.6 2153.6 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 444 x 44 x 4/40 = 1953.6
Number System What least number should be added to 8602 to make it a perfect square ? 47 36 41 51 47 36 41 51 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP So, (93)² = 8649So, the required number to be added to make a perfect square = 8649 - 8602 = 47
Number System 3√103820 x 3√274620 = ? 3035 3065 3045 3055 3035 3065 3045 3055 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 3√103820 = 47 and 3√274620 = 65 ∴ ? = 47 x 65 = 3055
Number System If (72)² is subtracted from the square of a number, the answer thus obtained is 4617. What is the number ? 99 103 95 92 99 103 95 92 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x² - (72)² = 467Therefore, x² = 4617 + 5184Therefore, x² = 9801 Therefore, x = 99
Number System The sum of the ages of a son and father is 65 years. After 5 years the age of father will be double of the age of son. What is the age of son ? 20 years 18 years 17 years 19 years 20 years 18 years 17 years 19 years ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the age of the son be x and the age of the father be y.Therefore, x + y = 65 ..........(i)or, 2 x (x + 5) = (y + 5)or, 2x + 10 = y + 5or, 2x - y = 5 ...................(ii)From equations (i) and (ii), x = 20, y = 45
Number System Supply the missing figure : 1, 4, 9, 16, 25 .... 49 36 42 16 23 36 42 16 23 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 36
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