Number System What is 432 times 119 ? 53408 52408 50408 51408 53408 52408 50408 51408 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP No. 432 x 119 = 51408
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 89/190 90/190 92/190 91/190 89/190 90/190 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 1260 x 1.45 - 888 x 1.75 = ? 367 295 256 273 367 295 256 273 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 1260 x 1.45 - 888 x 1.75= 1827 - 1554 = 273
Number System What least number should be added to 8602 to make it a perfect square ? 51 47 41 36 51 47 41 36 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP So, (93)² = 8649So, the required number to be added to make a perfect square = 8649 - 8602 = 47
Number System Of the three numbers, second is twice the first and is also thrice the third. If the average of the three numbers is 44, the largest number is 38 72 56 44 38 72 56 44 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 72
Number System If the difference between a number and its three-fourth is 18, find the number. 72 61 57 68 72 61 57 68 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x.According to the question,x - 3x/4 = 18= x/4 = 18= x = 4 x 18 = 72
EXAMIANS