Number System In how many different ways can the letters of the word 'FRUGAL'be arranged ? 720 660 515 556 720 660 515 556 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP In FRUGAL there ae six difference letters Therefore, 6 ! = 6 x 5 x 4 x 3 x 2 x 1 = 720
Number System If three eighth of a number is 141. What will be the approximately value of 32.08% of this number? 160 60 120 90 160 60 120 90 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x * 3/8 = 141 => x= 376376 * 32.08/100 = 120
Number System 5525 ÷ 17 = √? 93025 105625 99225 112225 93025 105625 99225 112225 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP √? = 5525/17 = 325∴ ? = (325)² = 105625
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 91/190 92/190 90/190 89/190 91/190 92/190 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 Which number should replace question mark (?) in the following equation ? ?/342 = 38/? 116 114 118 112 116 114 118 112 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (?)² = 342 x 38Therefore, ? = √342 x 38 = √38 x 9 x 38 = 38 x 3 = 114
Number System When 102 is reduced from a number, the number gets reduced by 88%. What is that number ? 550 750 850 650 550 750 850 650 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 850
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