There are Rs. 225 consisting of one rupee, 50 paise and 25 paise coins. The ratio of their numbers in that order is 8 : 5 : 3. The number of one - rupee coins is = ?
A. 80
B. 112
C. 160
D. 172
Answer: Option C
Solution(By Examveda Team)
Rs. 1 : 50 paise : 25 paiseNumber of coins 8x : 5x : 3x
$$\eqalign{ & {\text{Value of coins}} \cr & {\text{ = }}\frac{{8x}}{1}:\frac{{5x}}{2}:\frac{{3x}}{4} \cr & \therefore 8x + \frac{{5x}}{2} + \frac{{3x}}{4} = {\text{Rs}}.\,225, \cr & {\text{Given}}\frac{{32x + 10x + 3x}}{4} = 225 \cr & \Rightarrow 45x = 225 \times 4 \cr & \Rightarrow x = \frac{{225 \times 4}}{{45}} \cr & \Rightarrow x = 5 \times 4 = 20 \cr} $$
∴ Number of one rupees coins
= 20 × 8 = 160
Related Questions on Ratio
If a : b : c = 3 : 4 : 7, then the ratio (a + b + c) : c is equal to
A. 2 : 1
B. 14 : 3
C. 7 : 2
D. 1 : 2
If $$\frac{2}{3}$$ of A=75% of B = 0.6 of C, then A : B : C is
A. 2 : 3 : 3
B. 3 : 4 : 5
C. 4 : 5 : 6
D. 9 : 8 : 10
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