Number System What number should replace both the question marks (?) in the following question ? 85 83 82 84 85 83 82 84 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 84
Number System Sum of the digits number is 8 and their product is 12. Find the difference between the digits? 2 None 4 6 2 None 4 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 728.038 x 54.978 - 72.016 x 85.250 = ? 43900 53900 33900 23900 43900 53900 33900 23900 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 728 x 55 - 72 x 85.25 = 40040 - 6138 = 339900
Number System A certain number of two digits is three times the sum of its digits. If 45 be added to it, the digits are reversed. The number is: 27 30 22 24 27 30 22 24 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 27
Number System 1256+4813+765=? 6831 6834 6836 6839 6831 6834 6836 6839 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 1256+4813+765= 6069+765=6834
Number System 7.8% of 12.5 + 2.5% of 161 = ? 2 12 9 5 2 12 9 5 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 7.8 x 12.5/100 + 2.5 x 161/100= 0.975 + 4.025= 5
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