A constructor estimates that 10 people can paint Mr khans house in 4 days. If he uses 5 people instead of 10,how long will they take to complete the job?
Choose the most appropriate option:
A) 10	B) 4	C) 5	D) 8	E) 6
Explanation:   Use formula For a work Members Ã— days = constant   10 Ã— 4 = 5Ã— a   a = 8   so answer is 8 days   Answer: 8
<result>D</result>
A constructor estimates that 10 people can paint Mr khans house in 4 days. If he uses 5 people instead of 10,how long will they take to complete the job?