Number System What is the sum of the local values of the digits 2, 3, 4, 5 in the number 2345? 5243 2435 2345 2105 5243 2435 2345 2105 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 2000 + 300 + 40 + 5 = 2345
Number System 4500 * ? = 3375 1/4 2/5 3/5 3/4 1/4 2/5 3/5 3/4 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 4500 * x = 3375= x = 3375/4500 = 3/4
Number System An urn contains 9 blue, 7 white and 4 black balls. If 2 balls are drawn at random, then what is the probability that only one ball is white ? 89/190 92/190 90/190 91/190 89/190 92/190 90/190 91/190 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Total possible outcomes = 20C2 = 20 x 19/1 x 2 = 190Total favourable outcomes = 7C1 x 13C1 = 7 x 13 = 91∴ Required probability = 91/190
Number System When the square of a number is substracted from (68)², the answer so obtained is 2508. What is the number ? 47 44 45 46 47 44 45 46 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (68)² - x² = 2508Therefore, x² = 4624 = 2508Therefore, x = root of 2116 = 46
Number System (4300731) - ? = 2535618 1765113 1775123 1865113 1675123 1765113 1775123 1865113 1675123 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let 4300731 - x = 2535618Then, x = 4300731 - 2535618 = 1765113
Number System Find the nearest to 25268 which is exactly divisible by 467? 25308 25218 25228 25208 25308 25218 25228 25208 ANSWER DOWNLOAD EXAMIANS APP
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