A box contains 280 coins of one rupee, 50 paise and 25 paise. The value of each kind of the coins are in the ratio of 8 : 4 : 3. Then the number of 50 paise coins is = ?

A. 70

B. 60

C. 80

D. 90

Answer: Option C

Solution(By Examveda Team)

	Rs. 1	:	50 P	:	25 p
Values of coins	8x	:	11x	:	3x
Number of coins	8x×1	:	4x×2	:	3x×4
	8x	:	8x	:	12x

$$\eqalign{ & \therefore {\text{Total coins}} \cr & \Rightarrow 8x + 8x + 12x = 28x \cr & \Rightarrow 28x = 280{\text{ (given)}} \cr & \Rightarrow x = \frac{{280}}{{28}} \cr & \Rightarrow x = 10 \cr} $$
∴ Number of 50 P coins are 8x
= 8 × 10 = 80