Correct Answer - Option 1 : 8 months
Given:
Amount invested by A in 12 months = Rs. 85,000
Amount invested by B = Rs. 42,500
Profit ratio = 3 ∶ 1
Calculation
Let assume that amount invested by B for x months
According to the question:
\(⇒ \frac{85,000 \times 12}{42,500 \times x} = \frac{3}{1}\)
By cross-multiplication
⇒ x = \(\frac{85,000 \times 12}{42,500 \times 3}\)
⇒ x = 8 months
∴ B invested amount for 8 months.
The correct option is 1 i.e. 8