Number System The difference between 45% of a number and 18% of the same number is 145.8. What is 30% of that number ? 162 245 188 141 162 245 188 141 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x.45% of x - 18% of x = 145.8∴ x/100 (45 - 18) = 145.8∴ x = 145.8 x 100/27 = 540∴ 30% of 540 = 540 x 30/100 = 162
Number System If 1.5 x= 0.04 y, then the value of (y-x) (y+x) is: 93/77 77/73 83/77 73/77 93/77 77/73 83/77 73/77 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 73/77
Number System In how many different ways can be the letters of the word PENCIL be arranged among themselves ? 640 860 720 510 640 860 720 510 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Total six letters are there and hence the number of arrangements = 6! = 6 x 5 x 4 x 3 x 2 x 1 = 720
Number System Write the next number in the series : 14, 16, 13, 17, 12, 18, 11 .... 15 1 7 19 15 1 7 19 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 19
Number System The sum of three consecutive numbers is 87. The greatest among these three number is: 29 30 28 26 29 30 28 26 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the numbers be x, x + 1 and x + 2 Then,x + (x + 1) + (x + 2) = 873x = 84x = 28Greatest number, (x + 2) = 30.
Number System Three seventh of a number is 12 more than 40% of that number. What will be the 60% of that number? 126 248 210 148 126 248 210 148 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 3/7 x – 40/100 x = 12x = 35 * 1235 * 12 * 60/100 = 252/2 = 126
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