Number System Sum of the digits number is 8 and their product is 12. Find the difference between the digits? 2 6 4 None 2 6 4 None ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x + y = 8xy = 12(x – y)2 = (x + y)2 – 4xy (x – y)2 = 64 – 48 => (x – y) = 4
Number System The number of prime factors of (6)10×(7)17×(55)27 91 101 41 61 91 101 41 61 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 91
Number System In how many different ways can the letters of the word 'FRUGAL'be arranged ? 515 720 556 660 515 720 556 660 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 Which one of the following is the sum of the numbers 1, 3, 5, 7, 9…. up to nth number? N2 + 1 N(N + 1)/2 N(N + 1) N2 N2 + 1 N(N + 1)/2 N(N + 1) N2 ANSWER DOWNLOAD EXAMIANS APP
Number System How many figures are required to number the pages the pages of a book containing 365 pages? 967 987 897 977 967 987 897 977 ANSWER DOWNLOAD EXAMIANS APP
Number System (2560 x 1.4) +(7400 x 0.6) =? 6543 8024 7234 9160 6543 8024 7234 9160 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 8024
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