Number System In how many different ways can the letters of word "COLLEGE" be arranged ? 1300 1260 1240 1280 1300 1260 1240 1280 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Number of ways = 7!/2!2! = 1260(∵ L and E come twice)
Number System If the numerator of a fraction is increased by 200% and the denominator by 300%, the fraction thus obtained is 1/36. What is the original fractions ? 5/9 6/9 3/9 4/9 5/9 6/9 3/9 4/9 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the fractions be x/yx + 200% of x/y + 300% of y = 1/3= x + 2x/y + 3y = 1/3= 3x/4y = 1/3Hence x/y = 4/9
Number System In how many different ways can the letters of the word 'DETERMINE' be arranged ? 63480 61480 62480 60480 63480 61480 62480 60480 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP No. of arrangements = 9! / 3! Because, E comes 3 times = 60480
Number System In a division sum, the divisor is 10 times the quotient and 5 times the remainder. If the remainder is 46, the dividend is: 5336 9865 6890 2568 5336 9865 6890 2568 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 5336
Number System How many figures are required for numbering the pages of a book containing 1000 pages? 3892 2893 2883 6489 3892 2893 2883 6489 ANSWER DOWNLOAD EXAMIANS APP
Number System The difference between 45% of a number and 18% of the same number is 145.8. What is 30% of that number ? 245 141 188 162 245 141 188 162 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
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