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In a company 10% of male staff are same in number as 1/4th of the female staff. What is the ratio of male staff to female staff

 In a company 10% of male staff are same in number as 1/4th of the female staff. What is the ratio of
    male staff to female staff

a) 3 : 2             b) 5 : 2                        c) 2 : 1             d) 4 : 3




























Expl : 10% of MS = 1/4th of FS -> 10MS/100 = 1/4FS  -> MS = 5/2 FS

   :. MS/FS = 5/2 = MS : FS = 5 : 2

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It takes 10 days for digging a trench of 100 m long, 50 m broad and 10 m deep. What length of trench, 25 m broad and 15 m deep can be dug in 30 days ?

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