Number System {3√4913}² = ? 121 225 333 289 121 225 333 289 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = (3√4913)² = (17)² = 289
Number System If 35% of a number is 899.5, what is 68% of that number ? 1547.6 1847.6 1747.6 2247.6 1547.6 1847.6 1747.6 2247.6 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Suppose the number is x.Then 35% of x = 899.5∴ 68% of x = 68/35 x 899.5 = 1747.6
Number System When (21)² is subtracted from the square of a number the answer obtained is 1584. What is the number ? 55 45 65 35 55 45 65 35 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x.According to the question,x² - (21)² = 1584= x² - 441 = 1584 = x² = 1584 + 441 = 2025∴ x = √2025 = 45
Number System A certain number when divided by 39 leaves a remainder 20, what is the remainder when the same number is divided by 13? 7 0 5 11 7 0 5 11 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 39 + 20 = 59/13 = 7 (Remainder)
Number System The difference between two integers is 5. Their product is 500. Find the numbers. 15, 20 30, 25 21, 26 20, 25 15, 20 30, 25 21, 26 20, 25 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the integers be x and (x + 5). Then, x(x + 5) = 500 x2 + 5x - 500 = 0 (x + 25)(x - 20) = 0 x = 20So, the numbers are 20 and 25.
Number System Pick the wrong number from the given number series. 3,4,10,33,135,685,4116 10 33 685 135 10 33 685 135 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP The correct number is 136.3 x 1 + 1 = 44 x 2 + 2 = 1010 x 3 + 3 = 3333 x 4 + 4 = 136136 x 5 + 5 = 685685 x 6 + 6 = 4116
EXAMIANS