Number System A number consists of two digits. If 3/5 of 1/5 of the number is 9. Find the sum of its two digits? 12 8 7 60 12 8 7 60 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x * 3/5 * 1/5 = 9x = 75 => 7 + 5 = 12
Number System 4550 ÷ 25% of ? = 130 125 140 135 130 125 140 135 130 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 4550 ÷ ? x 25/100 = 130= 4550 ÷ ?/4 = 130= 4550 x 4/? = 130= ? x 130 = 4550 x 4= ? = 4550 x 4/130 = 140
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 14 21 17 33 14 21 17 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 12
Number System A basket contains 5 blue, 4 green and 3 red ball. If three balls are picked at random, what is the probability that at least one is red ? 37/52 34/55 31/58 32/51 37/52 34/55 31/58 32/51 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Probability of having no red ball is9C3 / 12C3 = 21/55Probability of having at least one red ball is 1 - 21/55 = 34/55
Number System The number of prime factors of (6)10×(7)17×(55)27 61 41 101 91 61 41 101 91 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 91
Number System Find out the smallest possible number which will be divisible by 1122 as well as 153. 1366 2366 3366 4366 1366 2366 3366 4366 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 3366
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