Number System √(17)² + (17)² + (5)² - 2 = ? 17 19 16 18 17 19 16 18 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = √49 + 289 + 25 - 2 = √361 = 19
Number System Simplify the 121 * 175 + 363 * 275 None of these 363000 316600 328100 None of these 363000 316600 328100 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 121 * 175 + 363 * 275 => 121 * 175 + 121 * 3 * 275121 * 175 + 121 * 825= 121 * (175 + 825) = 121000
Number System The population of a town increases by 15% in the first year and decreases by 25% in the second year. If its current population is 168480 then what will be its population after two years ? 145914 145314 145714 145214 145914 145314 145714 145214 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Population of the town= 168480 x 115/100 x 75/100= 145314
Number System 1051.64 - 159.42 - 96.84 + 162.37 - 940.26 + 504 = ? 511.49 491.49 501.49 521.49 511.49 491.49 501.49 521.49 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 1718.01 - 1196.52 = 521.49
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 ? 91/190 90/190 89/190 92/190 91/190 90/190 89/190 92/190 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 Twenty times a positive integer is less than its square by 96. What is the integer? 24 Cannot be determined 20 30 24 Cannot be determined 20 30 ANSWER DOWNLOAD EXAMIANS APP
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