Ratio, Proportion
- A box contains 1-rupee, 50-paise and 25-paise coins in the ratio 8 : 5 : 3. If the total amount of money in the box is ₹ 112.50, the number of 50-paise coins is
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Ratio of number of 1 rupee, 50-paise and 25 paise coins = 8 : 5 : 3
Ratio of their respective values= 8 : 5 : 3 2 4
= 32 : 10 : 3
Sum of the ratios = 32 + 10 + 3 = 45
Value of 50 paise coins= ₹ 
10 × 112.5 
= ₹ 25 45
∴ Number of 50 paise coins = 25 × 2 = 50
Correct Option: B
Ratio of number of 1 rupee, 50-paise and 25 paise coins = 8 : 5 : 3
Ratio of their respective values= 8 : 5 : 3 2 4
= 32 : 10 : 3
Sum of the ratios = 32 + 10 + 3 = 45
Value of 50 paise coins= ₹ 10 × 112.5 = ₹ 25 45
∴ Number of 50 paise coins = 25 × 2 = 50
- There are ₹ 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 :
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Ratio of the number of coins = 8 : 5 :3
Ratio of their values = 8 : 5 : 3 2 4
= 32 : 10 : 3
Sum of the ratios = 32 + 10 + 3 = 45∴ Value of one rupee coins = 32 × 225 = ₹ 160 45
∴ Number of one rupee coins = 160Correct Option: C
Ratio of the number of coins = 8 : 5 :3
Ratio of their values = 8 : 5 : 3 2 4
= 32 : 10 : 3
Sum of the ratios = 32 + 10 + 3 = 45∴ Value of one rupee coins = 32 × 225 = ₹ 160 45
∴ Number of one rupee coins = 160
- A bag contains ₹ 90 in coins of denominations of 50 paise, 25 paise and 10 paise. If coins of 50 paise, 25 paise and 10 paise are in the ratio 2 : 3 : 5, then the number of 25 paise coins in the bag is
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Ratio of values of 50 paise, 25 paise and 10 paise coins
= 2 : 3 : 5 2 4 10 = 1 : 3 : 1 4 2
= 4 : 3 : 2
Sum of the ratios = 4 + 3 + 2 = 9Value of 25 paise coins = 3 × 90 = ₹ 30 9
Number of 25 paise coins
= 30 × 4 = 120Correct Option: B
Ratio of values of 50 paise, 25 paise and 10 paise coins
= 2 : 3 : 5 2 4 10 = 1 : 3 : 1 4 2
= 4 : 3 : 2
Sum of the ratios = 4 + 3 + 2 = 9Value of 25 paise coins = 3 × 90 = ₹ 30 9
Number of 25 paise coins
= 30 × 4 = 120
- If 378 coins consist of rupees, 50 paise and 25 paise coins, whose values are in the ratio of 13 : 11 : 7, the number of 50 paise coins will be :
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The ratio of values of rupee,
50 paise and 25 paise coins = 13 : 11 : 7
∴ Ratio of their numbers
= 13 × 1 : 11 × 2 : 7 × 4
= 13 : 22 : 28
Sum of the ratios
= 13 + 22 + 28 = 63
∴ Required number of 50 paise coins= 22 × 378 = 132 63 Correct Option: A
The ratio of values of rupee,
50 paise and 25 paise coins = 13 : 11 : 7
∴ Ratio of their numbers
= 13 × 1 : 11 × 2 : 7 × 4
= 13 : 22 : 28
Sum of the ratios
= 13 + 22 + 28 = 63
∴ Required number of 50 paise coins= 22 × 378 = 132 63
- ₹ 180 contained in a box consists of one rupee, 50 paise and 25 paise coins in the ratio 2 : 3 : 4. What is the number of 50 paise coins?
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= 4 : 3 : 2Ratio of the values = 2 : 3 : 4 2 4
∴ Value of 50 paise coins= 3 × 180 = ₹ 60 9
Numbers of 50 paise coins = 120.Correct Option: B
= 4 : 3 : 2Ratio of the values = 2 : 3 : 4 2 4
∴ Value of 50 paise coins= 3 × 180 = ₹ 60 9
Numbers of 50 paise coins = 120.
