Number System A number is doubled and 9 is added. If the resultant is trebled, it becomes 75. What is that number? 3.5 8 None of these 6 3.5 8 None of these 6 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x. Then,3(2x + 9) = 752x = 16 => x = 8
Number System 486+32×25—59=? 567 528 596 582 567 528 596 582 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 528
Number System How many numbers up to 300 and 700 are divisible by 2, 3 and 7 both together? 9 10 8 11 9 10 8 11 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (700 – 300)/42 = 9 22/42 => 9 Numbers
Number System How many times the keys of a typewriter have to be pressed in order to write first 400 counting numbers? 1082 1092 1200 1192 1082 1092 1200 1192 ANSWER DOWNLOAD EXAMIANS APP
Number System On dividing a number by 68, we get 269 as quotient and 0 as remainder. On dividing the same number by 67, what will be the remainder? 1 3 0 2 1 3 0 2 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Number = 269 * 68 + 0 = 1829267) 18292 (273 18291 -------- 1Required number = 1.
Number System One half of a two digit number exceeds its one third by 6. What is the sum of the digits of the number? 3 5 9 7 3 5 9 7 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x/2 – x/3 = 6=> x =63 + 6 = 9
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