Question

A purse contains 4 copper coins and 3 silver coins, the second purse contains 6 copper coins and 2 silver coins. If a coin is drawn out of any purse, then the probability that it is a copper coin is

• A. 4/7
• B. ¾
• C. 37/56
• D. None of these

Answer 1

Answer: (C)

37/56

Answer 2

Required probability $= \frac { 1 } { 2 } \cdot \frac { 4 } { 7 } + \frac { 1 } { 2 } \cdot \frac { 6 } { 8 } = \frac { 37 } { 56 }$ .