Correct option is D
Given:
Monthly Profit = 7000.
Calculation:
Let money invested by R be Rs. 8
So, money invested by Q = 8 ×1/(2 )=4
Money invested by P = 4 ×1/(2 )=2
Profit ratio of P, Q and R = 8 : 4 : 2 = 4 : 2 : 1
Total = 4 + 2 + 1 = 7 unit
as per the question,
7 unit = Rs. 7000
1 unit = 7000/7 = 1000
Share of R = 4 unit = 4 × 1000 = Rs. 4000