Number System Find the number which multiplied by 15 is increased by 196. 28 20 26 14 28 20 26 14 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x. Then,15x - x = 196x = 14
Number System Radha's present age is three years less than twice her age 12 years ago. Also the respective ratio between Raj's present age and Radha's present age is 4 : 9. What will be Raj's age after 5 years ? 15 years 17 years 16 years 14 years 15 years 17 years 16 years 14 years ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let Radha's present age = x years.∴ x = 2 (x = 12) - 3= x = 2x - 24 - 3= x = 27∴ Raja's present age = 4/9 x 27= 12 years ∴ Raja's age after 5 years = 12 + 5 = 17 years
Number System In how many different ways can the letters of word "COLLEGE" be arranged ? 1280 1240 1260 1300 1280 1240 1260 1300 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Number of ways = 7!/2!2! = 1260(∵ L and E come twice)
Number System If the three fourth of a number is subtracted from the number; the value so, obtained is 163. What is that number ? 689 692 652 678 689 692 652 678 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Number x (1 - 3/4) = 163∴ Number = 163 x 4 = 652
Number System What should come in place of question mark (?)? 8 : 1 1 : : 72: 79 109 89 99 79 109 89 99 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let ? = xTherefore 8 : 11 : 72 : xTherefore x = (11 x 72) / 8 = 99
Number System (444 x 44 x 4) ÷ 40 ? 2053.6 1953.6 1853.6 2153.6 2053.6 1953.6 1853.6 2153.6 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 444 x 44 x 4/40 = 1953.6
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