Number System If the fractions8/5,7/2,9/5,5/4,4/5 are arranged in descending order of their values, which one will be fourth? 7/9 5/4 11/13 1/3 7/9 5/4 11/13 1/3 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 5/4
Number System A number exceeds by 25 from its 3/8 part. Then the number is? 35 32 40 39 35 32 40 39 ANSWER DOWNLOAD EXAMIANS APP
Number System (4300731) - ? = 2535618 1775123 1675123 1865113 1765113 1775123 1675123 1865113 1765113 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let 4300731 - x = 2535618Then, x = 4300731 - 2535618 = 1765113
Number System The average age of seven boys sitting in a row facing North is 26 years. If the average age of first three boys is 19 years and the average age of last three boys is 32 years, what is the age of the b 31 years 29 years 28 years 30 years 31 years 29 years 28 years 30 years ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Age of the fourth boy = (26 x 7 - 3 x 19 - 3 x 32) years = (182 - 57 - 96) years = 29 years
Number System Which is the largest fraction among the following ? 21/23 24/25 12/13 21/22 21/23 24/25 12/13 21/22 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 A two-digit number is such that the product of the digits is 8. When 18 is added to the number, then the digits are reversed. The number is: 42 18 24 81 42 18 24 81 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the ten's and unit's digit be x and 8/x respectively. Then, (10x + 8/x) + 18 = 10 * 8/x + x 9x2 + 18x - 72 = 0 x2 + 2x - 8 = 0 (x + 4)(x - 2) = 0 x = 2 So, ten's digit = 2 and unit's digit = 4. Hence, required number = 24.
EXAMIANS