Number System If A = 1, B = 3, C = 5 and so on, what do the numbers 3, 9, 7 stand for CAR BED CAT BAT CAR BED CAT BAT ANSWER EXPLANATION DOWNLOAD EXAMIANS APP BED
Number System A shopkeeper purchased 200 bulbs for Rs. 10 each. However, 5 bulbs were fused and had to be thrown away. The remaining were sold at Rs. 12 each. What will be percentage profit? 33 17 14 21 33 17 14 21 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 12
Number System The average of five consecutive even numbers A, B, C, D and E is 54. What is the product of'B' and 'E' ? 2871 1456 3016 4098 2871 1456 3016 4098 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Because, The even numbers are consecutive and their average is 54.∴ The number C will be 54.∴ A = 50, B = 52, D = 56, E = 58B x E = 52 x 58 = 3016
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 92/190 89/190 90/190 91/190 92/190 89/190 90/190 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 106 * 106 - 94 * 94 = ? 2000 1904 2400 1906 2000 1904 2400 1906 ANSWER DOWNLOAD EXAMIANS APP
Number System 124, 235, 447, 760, 1174, ? 1589 1689 1389 1489 1589 1689 1389 1489 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP +111, +212, +313, +414
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