Number System In how many different ways can the letters of the word "MOBILIZE" be arranged ? 20160 18456 19765 17453 20160 18456 19765 17453 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP The word MOBILIZE has eight letters in which I comes twice ∴ Number of arrangements = 8!/2! = 20160
Number System What is the sum of the local values of the digits 2, 3, 4, 5 in the number 2345? 2345 5243 2435 2105 2345 5243 2435 2105 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 2000 + 300 + 40 + 5 = 2345
Number System 106 * 106 - 94 * 94 = ? 2000 2400 1904 1906 2000 2400 1904 1906 ANSWER DOWNLOAD EXAMIANS APP
Number System If 35% of a number is 899.5, what is 68% of that number ? 2247.6 1747.6 1547.6 1847.6 2247.6 1747.6 1547.6 1847.6 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Suppose the number is x.Then 35% of x = 899.5∴ 68% of x = 68/35 x 899.5 = 1747.6
Number System If the numerator of a fraction is decreased by 12.5% and the denominator is increased by 180% the resultant fraction is 1/2. What is the original fraction ? 3/5 7/5 8/5 1/5 3/5 7/5 8/5 1/5 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the original fraction be x/y.∴ x x 87.5/100/y x 280/100 = 1/2or 87.5x/280y = 1/2∴ 175x = 280y∴ x/y = 280/175 = 8/5
Number System If 5/7 of a number is 145, what is 180% of that number ? 345.4 375.4 365.4 355.4 345.4 375.4 365.4 355.4 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x.∴ x x 5/7 = 145∴ x = 145 x 7/5 = 203Now, 203 x 180/100 = 365.4
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