Number System In a division sum, the divisor is 10 times the quotient and 5 times the remainder. If the remainder is 46, the dividend is: 6890 9865 2568 5336 6890 9865 2568 5336 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 5336
Number System When 102 is reduced from a number, the number gets reduced by 88%. What is that number ? 650 750 850 550 650 750 850 550 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 850
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 ? 39/340 45/340 51/340 58/340 39/340 45/340 51/340 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 What least number should be added to 8602 to make it a perfect square ? 41 47 51 36 41 47 51 36 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP So, (93)² = 8649So, the required number to be added to make a perfect square = 8649 - 8602 = 47
Number System Which choice provides the answer : If 2 + 3 = 10, 6 + 5 = 66, 7 + 2 = 63, 9 + 7 = 144 then, 8 + 4 = ? 114 96 102 88 114 96 102 88 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 96
Number System What is the value of ? in the following equations ? 72/? = ?/50 60 40 100 80 60 40 100 80 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (?)² = 72 x 50= (6 x 6 x 2) x (5 x 5 x 2)= (6 x 5 x 2)² = (60)²∴ ? = 60
EXAMIANS