Number System Sum of the digits number is 8 and their product is 12. Find the difference between the digits? 4 2 None 6 4 2 None 6 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 What number should replace both the question marks (?) in the following question ? 84 83 82 85 84 83 82 85 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 84
Number System How many times the keys of a typewriter have to be pressed in order to write first 400 counting numbers? 1192 1082 1092 1200 1192 1082 1092 1200 ANSWER DOWNLOAD EXAMIANS APP
Number System √9216 + √15376 = ? 220 224 227 231 220 224 227 231 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = √9216 + √15376= 96 + 124= 220
Number System (444 x 44 x 4) ÷ 40 ? 2153.6 1853.6 1953.6 2053.6 2153.6 1853.6 1953.6 2053.6 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 444 x 44 x 4/40 = 1953.6
Number System What should come in place of (?) in the following series ? 10, 19, 30, 43, 58, ? 76 78 75 77 76 78 75 77 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP The series is: +9, +11, +13, +15, +17
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