The daily wages of A and B respectively are Rs.3.50 and 2.50. When A finishes a certain work, he gets a total wage of Rs. 63. When B does the same work, he gets a total wage Rs.75. If both of them do it together what is the cost of the work ?
Show answer & explanation
Correct answer: A
Explanation
The correct option is 1.
daily wage of A = rs 3.50
total wage earned by A = rs 63
no of days A worked = 
= 18 days
daily wage of B = rs 2.50
total wage earned by B = rs 75
no of days B worked = 
= 30 days
no of days taken to complete the work when A and B do together = 
{when A takes x days and b takes y days}
= 
days
Total amount paid to A and B per day = 3.50 + 2.50 = rs 6
Total amount to be paid = 
= Rs 67.50