Number System 217 * 217 + 183 * 183 = ? 80698 79698 80578 81268 80698 79698 80578 81268 ANSWER DOWNLOAD EXAMIANS APP
Number System 35 + 15 * 1.5 = ? 75 57.5 51.5 5.25 75 57.5 51.5 5.25 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Given Exp. = 35 + 15 * 3/2 = 35 + 45/2 = 35 + 22.5 = 57.5
Number System The cost of 87 pens and 29 pencils is `783. What is the cost of 90 pens and 30 pencils ? Rs. 820 Rs. 830 Rs. 810 Rs. 800 Rs. 820 Rs. 830 Rs. 810 Rs. 800 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the price of a pen be 'x' and that of pencil be 'y' Then 87x + 29y = 783Multiplying eqn (i) by 30/29 we get (87x) x 30/29 + (29y) 30/29 = 783 x 30/29∴ 90x + 30y = 810
Number System How many times the keys of a typewriter have to be pressed in order to write first 400 counting numbers? 1092 1192 1200 1082 1092 1192 1200 1082 ANSWER DOWNLOAD EXAMIANS APP
Number System Which one of the following represents the sum of the first n even numbers? N2+ 1 N2 N(N + 1) N(N – 1) N2+ 1 N2 N(N + 1) N(N – 1) ANSWER EXPLANATION DOWNLOAD EXAMIANS APP N (N + 1)
Number System Find the least number when successively divided by 2, 3 and 7 leaves remainders 1, 2 and 3 respectively? 61 67 75 65 61 67 75 65 ANSWER DOWNLOAD EXAMIANS APP
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