Number System (1024—263—233)÷(986—764— 156) =? 8 10 6 None of these 8 10 6 None of these ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 8
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 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 ? 91/190 89/190 92/190 90/190 91/190 89/190 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 What is the difference between the local value of 7 and 5 in the number 2574? 570 430 413 403 570 430 413 403 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 500 – 70 = 430
Number System If HKUJ means FISH, what does UVCD mean ? STAM STAB STAK STAR STAM STAB STAK STAR ANSWER EXPLANATION DOWNLOAD EXAMIANS APP STAB
Number System The average of five consecutive even numbers A, B, C, D and E is 42. What is the product of B and D ? 2476 4589 1760 3289 2476 4589 1760 3289 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP A + B + C + D + E/5 = 42∴ C = 42, ∴ B = 40, ∴ D = 44∴ B x D = 40 x 44 = 1760
EXAMIANS