Question
A shopkeeper mixes two varieties of tea, one costing
₹300 per kg and the other ₹450 per kg, in the ratio 5:3. He sells the mixture at ₹400 per kg. Find his profit percentage.Solution
Let the quantity of the first variety (₹300/kg) be 5 kg and the second variety (₹450/kg) be 3 kg. Cost price of the mixture = (5 × 300 + 3 × 450) / 8 = (1500 + 1350) / 8 = ₹356.25 per kg. Selling price = ₹400 per kg. Profit percentage = [(400 − 356.25) / 356.25] × 100 ≈ 12.29%. Ans. b
11 110 978 6824 34103 102290
100, 164, 740, 3044, 9444, 20320
- 78, 86, 71, 95, 60, 112
81, 154, 124, 197, 167, 235
164, 304, 433, 551, 658, 752
- Find the wrong number in the given number series.
3, 10, 22, 39, 61, 88 Find the wrong number in the series.
3, 6, 18, 72, 360, 2160, 15120Find the wrong number in the given number series.
121, 132, 145, 160, 181, 204
12, 28, 64, 128, 228, 379
In each of the following number series, one term is wrong. Find the wrong term.
7, 10, 18, 33, 58, 92, 140