Number System 8988 / 8 / 4 = ? 4494 2247 561.75 280.875 4494 2247 561.75 280.875 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 8988 * 1/8 * 1/4 = 2247/8 = 280.875
Number System Ratio between two numbers is 3: 4 and their sum is 420. Find the smaller number? 240 140 180 160 240 140 180 160 ANSWER DOWNLOAD EXAMIANS APP
Number System The product of two consecutive odd numbers is 4623. What is the product of the next two consecutive odd numbers ? 5183 6782 8795 7745 5183 6782 8795 7745 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP √4623 = 6767 x 69 = 4623∴ Required product = 71 x 73 = 5183
Number System 17580 x 1.8 - 13720 x 2.1 = ? x 2.4 1160 1140 1120 1180 1160 1140 1120 1180 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 2.4 x ? = 31644 - 28812 = 2832∴ ? = 2832/2.4= 1180
Number System On multiplying a number by 7, the product is a number each of whose digits is 3. The smallest such number is: 47619 47649 47719 48619 47619 47649 47719 48619 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP By hit and trail, we find that47619 * 7 = 333333.7) 333333 (47619 333333---------------- 0
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
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