Number System How many times the keys of a typewriter have to be pressed in order to write first 400 counting numbers? 1200 1192 1082 1092 1200 1192 1082 1092 ANSWER DOWNLOAD EXAMIANS APP
Number System Given √2 = 1.414, the value of √8 + 2√32 - 3√128 + 4√50 is 8.684 8.584 8.784 8.484 8.684 8.584 8.784 8.484 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 8.484
Number System In how many different ways can the letters of the word FORMULATE be arranged ? 372880 362880 392880 382880 372880 362880 392880 382880 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP No. of letters = 9! = 9*8*7*6*5*4*3*2*1 = 362880
Number System If the difference between a number and two-fifths of that number is 45 what is the number ? 78 76 75 77 78 76 75 77 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x ∴ x - 2x/5 = 45∴ x = 75
Number System A number is doubled and 9 is added. If the resultant is trebled, it becomes 75. What is that number? 6 3.5 8 None of these 6 3.5 8 None of these ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x. Then,3(2x + 9) = 752x = 16 => x = 8
Number System Ratio between two numbers is 3: 4 and their sum is 420. Find the smaller number? 140 160 180 240 140 160 180 240 ANSWER DOWNLOAD EXAMIANS APP
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