Number System The sum of three consecutive even numbers is 252. What is the sum of the smallest and the largest numbers? 168 169 171 170 168 169 171 170 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 168
Number System √207.36 = ? 15.7 16.7 12.3 14.4 15.7 16.7 12.3 14.4 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP √207.36 = √20736/√100 = 144/10 = 14.4
Number System The peresent age of the father and the son are in the ratio of 8:3. After 12 years the ratio of their ages will be 2:1. What is the sum of the present age of the father and the son ? 69 years 68 years 67 years 66 years 69 years 68 years 67 years 66 years ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the present age of the father be 'x' and that of the son be 'y'. Then x/y = 8/3∴ 3x = 8y Further, x + 12/y + 12 = 2/1 ∴ x + 12 = 2y + 24 ∴ x - 2y = 12 ......(ii)From eqn (i) and (ii), x = 48, y = 18 ∴ sum = 66 yrs.
Number System {3√4913}² = ? 333 289 225 121 333 289 225 121 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = (3√4913)² = (17)² = 289
Number System 50% of 8/15 of 9/4 of 5/3 of 333 = ? 666 444 555 333 666 444 555 333 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 50% of [8x9x5/15x4x3 x 333]= 50% of 666= 333
Number System If the fraction 8/6, 7/5, 18/13, 9/5 and 7/11 are arranged in descending order of their values, which one will be the second ? 1/9 7/5 3/4 2/7 1/9 7/5 3/4 2/7 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 8/6 = 1. 333, 7/5 = 1.4, 18/13 = 1.3849/5 = 1.8 and 7/11 = 0.636Therefore, Descending order is 9/5 > 7/5 > 18/13 > 8/6 > 7/11Therefore Second fraction is 7/5
EXAMIANS