Number System The difference between a number and its three-fifth is 50. What is the number? 125 None of these 75 100 125 None of these 75 100 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x - 3/5 x = 50 => 2/5 x = 50x = (50 * 5)/2 = 125.
Number System The sum and the product of two numbers are 25 and 144 respectively, the difference of the number is? 5 7 3 11 5 7 3 11 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x + y = 25xy = 144(x- y)2 = (x + y)2 – 4xy(x- y)2 = 625 – 576 => (x – y) = 7
Number System What is the difference between the local value of 7 and 5 in the number 2574? 430 403 570 413 430 403 570 413 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 500 – 70 = 430
Number System Find the average of the following set of scores 450, 1050, 12, 390, 143, 286, 550, 999 485 480 490 495 485 480 490 495 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Required average score = (450 + 1050 + 12 + 390 + 143 + 286 + 550 + 999) / 8 = 3880 / 8 = 485
Number System If 5/7 of a number is 145, what is 180% of that number ? 365.4 345.4 375.4 355.4 365.4 345.4 375.4 355.4 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x.∴ x x 5/7 = 145∴ x = 145 x 7/5 = 203Now, 203 x 180/100 = 365.4
Number System (95.6x 910.3) ÷ 92.56256 = 9? 13.34 12.24 14.44 15.54 13.34 12.24 14.44 15.54 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 13.34
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