A worker is paid x rupees for painting every 5 metres of a wall and y rupees for painting every extra metre. During one week, he painted 5 metres on Monday, 6 metres on Tuesday, 7 metres on Wednesday, 8 metres on Thursday and 9 metres on Friday. What is his average daily earning rupees for the five day week?
Choose the correct option:  A) x + 2y  B) (5x + 9y)/5  C) 10x + (8/5)y  D) None of these  E) Cannot be determined
Explanation :   On Monday, the payment = Rs x   On Tuesday, the payment = Rs (x + y)   On Wednesday, the payment = Rs (x + 2y)   On Thursday, the payment = Rs (x + 3y)   On Friday, the payment = Rs (x + 4y)   x + 2yverage daily earning during the five-day week = (5x + 10y)/5   = x + 2y   x + 2ynswer : x + 2y
<result>A</result>
A worker is paid x rupees for painting every 5 metres of a wall and y rupees for painting every extra metre. During one week, he painted 5 metres on Monday, 6 metres on Tuesday, 7 metres on Wednesday, 8 metres on Thursday and 9 metres on Friday. What is his average daily earning rupees for the five day week?