Number System Two third of three- fifth of one fourth of a number is 24, what is 30% of that number? 72 90 69 42 72 90 69 42 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x * 2/3 * 3/5 * 1/4 = 24x = 240240 * 30/100 = 72
Number System Which is the largest fraction among the following ? 21/22 24/25 21/23 12/13 21/22 24/25 21/23 12/13 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 21/23 = 0.913,12/13 = 0.92323/25 = 0.92, 21/22 = 0.9545, 24/25 = 0.96
Number System Given √2 = 1.414, the value of √8 + 2√32 - 3√128 + 4√50 is 8.784 8.684 8.584 8.484 8.784 8.684 8.584 8.484 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 8.484
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 ? 17 years 18 years 19 years 20 years 17 years 18 years 19 years 20 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 In an examination, 68% of the total examinees passed. If the number of failures is 248, the total number of examinees is 640 750 725 775 640 750 725 775 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Failed students are 32% which is 248.∴ Total = 24800/32 = 775
Number System The simplest form of 1.5 : 2.5 is : 5 : 7 3 : 5 13 : 11 17 : 19 5 : 7 3 : 5 13 : 11 17 : 19 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 3 : 5
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