Number System 4/6 of 6/5 of 5/7 of a number is 96. Find the number. 170 162 168 164 170 162 168 164 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x.∴ x x 4/6 x 6/5 x 5/7 = 96∴ x = 96 x 6 x 5 x 7/4 x 6 x 5 = 168
Number System What should come in the place of question mark (?) in the number series given below? 160 159 157 158 160 159 157 158 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 160
Number System A bag contains four red, six black and seven green balls. Three balls are drawn randomly. What is the probability that the balls drawn contain exactly two red balls ? 51/340 39/340 45/340 58/340 51/340 39/340 45/340 58/340 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Total balls = 4 + 6 + 7 = 17∴ n(S) = 17C1 = 680Two red balls can be selected from four red balls in 4C2 = 6 ways.and the third ball can be selected from the remaining 13 balls in 13C1 = 13 ways.∴ P (E) = 13x6/680 = 39/340
Number System Find out the smallest possible number which will be divisible by 1122 as well as 153. 3366 1366 2366 4366 3366 1366 2366 4366 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 3366
Number System In how many different ways can the letters of word "SENTENCE" be arranged ? 3260 2360 6460 3360 3260 2360 6460 3360 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Number of ways = 8!/3! 2! = 40320/12 = 3360
Number System A number when, 28 subtracted from it reduces to its one third. What is the value of 50% of that number? 42 21 84 24 42 21 84 24 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 2/3 x = 28 => x = 4242 * 1/2 = 21
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