Correct Answer - Option 3 : 750
Given:
Time taken by A to do the work = 8 days
Time taken by B to do the work = 12 days
Time taken by A, B and C together to do the work = 4 days
Calculation:
Let the total work be LCM (8, 12, 4).
LCM (8, 12, 4) = 24 unit
In one day A do = 24/8 unit
⇒ 3 unit
In one day B do = 24/12 unit
⇒ 2 unit
In one day A, B and C do = 24/4 unit
⇒ 6 unit
In one day only C do = 6 - (3 + 2)
⇒ 1 unit
The proportion of their shares = A's 1-day work : B's 1-day work : C's 1-day work
⇒ 3 : 2 : 1
According to the question,
Total share = 4500
⇒ 6 unit = 4500
⇒ 1 unit = 750
So, C's share = Rs. 750
∴ The C’s share of the money is Rs. 750.