a mans basic pay for a 40 hour week is rs 20..., Percentage, General Mathematics

Question:A man's basic pay for a `40` hour week is Rs.`20`. overtime is paid for at `25%` above the basic rate. In a center week, he worked overtime and his total wage was Rs. `25.` He therefore, worked for a total of ;

A `45 hours` 
B `47 hours` 
C `48 hours` 
D `50 hours`

/114

+ AnswerC

+ ExplanationBasic rate = Rs.`20/40` per hour.

overtime rate = Rs. `(125/100 xx 20/40)` per hour

`= Rs. 5/8` per hr.

Let overtime hours = x

Then,`5/8 x = 5 => x = (5 xx 8)/5`

`= 8 hours`

So, he worked for (40 + 8) hours 

`= 48 hours`

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