Number System If the difference between a number and its three-fourth is 18, find the number. 72 61 68 57 72 61 68 57 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x.According to the question,x - 3x/4 = 18= x/4 = 18= x = 4 x 18 = 72
Number System In how many different ways can the letters of the word CORPORATION be arranged ? 2326400 None of these 3326400 1326400 2326400 None of these 3326400 1326400 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP CORPORATION = 11 letters 'O' comes thrice,'R' twice.∴ total no. of ways = 111/3121 = 3326400
Number System If the sum of one-half of a number exceeds one-third of that number by 7 1/3, the number is: 20 30 15 18 20 30 15 18 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x. Then,(1/2 x + 1/5 x) - 1/3 x = 22/311/30 x = 22/3x = 20
Number System If A = 1, B = 3, C = 5 and so on, what do the numbers 3, 9, 7 stand for CAT CAR BAT BED CAT CAR BAT BED ANSWER EXPLANATION DOWNLOAD EXAMIANS APP BED
Number System The sum of a number and its reciprocal is one-eighth of 34. What is the product of the number and its square root? 8 32 None of these 27 8 32 None of these 27 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x. Then,x + 1/x = 34/8 8x2 - 34x + 8 = 0 4x2 - 17x + 4 = 0 (4x - 1)(x - 4) = 0 x = 4required number = 4 * √4 = 4 * 2 = 8.
Number System In an examination, 68% of the total examinees passed. If the number of failures is 248, the total number of examinees is 640 750 775 725 640 750 775 725 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Failed students are 32% which is 248.∴ Total = 24800/32 = 775
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