Question
A pouch has 25-paisa, 50-paisa and 1-rupee coins in the
ratio 8:5:3. If the total amount is Rs. 90, find 75% of the number of 50-paisa coins.Solution
ATQ,
Let the counts be 8x, 5x and 3x. (0.25×8x) + (0.50×5x) + (1×3x) = 90 2.00x + 2.50x + 3.00x = 90 7.50x = 90 ⇒ x = 12 Number of 50p coins = 5x = 60 Required = 75% of 60 = 0.75×60 = 45
More Ratio Questions
[(82 × 162)/12] - 28 = ?
What will come in the place of question mark (?) in the given expression?
216 ÷ 6 + √? - 126 ÷ 7 = 23 X 2
- Evaluate: 156 ÷ 12 × 4 + 180 – 40% of 350
12% of 450 + 16% of 1500 = ?
15(2/9) + 11(2/9) + 17(1/9) + 13(4/9) = ?
(30 × 0.80)⁴ ÷ (2160 ÷ 60)⁴ × (54 × 16)⁴ = (6 × 4)?+5
7/11 × 1034 + 1(4/7) × 2401 = 1230 +?
√225 + 27 × 10 + ? = 320
15 × 35 ÷7 + 60% of 300 =?
13.5% of (100 + ?) = 27
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