Number System 7432 ÷ 32 x ? = 2787 41 21 78 12 41 21 78 12 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 7432/32 x ? = 2787= ? = 2787 x 32/7432 = 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 ? 34/55 31/58 32/51 37/52 34/55 31/58 32/51 37/52 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 In how many different ways can the letters of word "SENTENCE" be arranged ? 3360 2360 6460 3260 3360 2360 6460 3260 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Number of ways = 8!/3! 2! = 40320/12 = 3360
Number System Three seventh of a number is 12 more than 40% of that number. What will be the 60% of that number? 210 148 248 126 210 148 248 126 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 3/7 x – 40/100 x = 12x = 35 * 1235 * 12 * 60/100 = 252/2 = 126
Number System In how many different ways can the letters of word 'BIOLOGY' be arranged ? 2678 2367 2410 2520 2678 2367 2410 2520 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP In BIOLOGY total 7 letters are there but O comes twice.∴ Number of arrangements = 7!/2! = 2520
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