Number System In how many different ways can the letters of word 'BIOLOGY' be arranged ? 2367 2520 2410 2678 2367 2520 2410 2678 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP In BIOLOGY total 7 letters are there but O comes twice.∴ Number of arrangements = 7!/2! = 2520
Number System If all the fractions 3/10, 1/16, 4/11, 2/9, 1/7, 5/14 and 5/24 arranged in descending order of their values, then which one will be the third? 1/16 4/11 3/10 2/9 1/16 4/11 3/10 2/9 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 3/10 = 0.3, 1/16 = 0.0625, 4/11 = 0.36, 2/9 = 0.22, 1/7 = 0.14, 5/14 = 0.36 and 5/24 = 0.214/11 > 5/14 > 3/10 > 2/9 > 5/24 > 1/7 > 1/163/10 will be the third.
Number System If the following fractions 7/6, 6/7, 5/3, 8/13 and 6/5 are arranged in descending order, which will be the last in the series? 7/13 8/13 9/13 6/13 7/13 8/13 9/13 6/13 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 7/6 = 1.166, 6/7 = 0.857,5/3 = 1.66,8/13 = 0.615,6/5 = 1.2Therefore, 5/3 > 6/5 > 7/6 > 6/7 > 8/13
Number System Three numbers are in ratio of 3: 4 :5. If the sum of first & third numbers is more than second number by 52, which will be largest number? 78 65 34 23 78 65 34 23 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 65
Number System The difference between 72% of a number and 49% of the same number is 575. What is 9% of that number ? 295 245 225 275 295 245 225 275 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the no. be x.Therefore, 72% of x - 49% of x = 575Therefore, (72 - 49)% of x = 575Therefore, 9% of x = 575/23 x 9 = 225
Number System 64% of 2650+40% 0f 320=? 2096 1578 1824 1247 2096 1578 1824 1247 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 1824
EXAMIANS