Question 52 of 90intermediate🔧 ApplyNumerical2 marks
The cost of some grocery items is given in the following table. Find the total cost of each item.
| Item | Weight | Cost of 1 kg | Total cost |
|---|---|---|---|
| Rice | 12 kg 500 g | ₹60 | |
| Flour | 7 kg 250 g | ₹40 | |
| Sugar | 5 kg | ₹45 | |
| Chana dal | 3 kg 600 g | ₹70 | |
| Besan | 4 kg | ₹60 | |
| Jaggery | 1 kg 400 g | ₹50 |
Flour: 7 kg 250 g at ₹40 per kg
Correct Answer
Given: Weight of flour = 7 kg 250 g Cost per kg = ₹40
Conversion: 7 kg 250 g = 7.25 kg
Calculation: Total cost = 7.25 × ₹40 = ₹290
Alternative Method: Cost for 7 kg = 7 × ₹40 = ₹280 Cost for 250 g = 0.25 × ₹40 = ₹10 Total cost = ₹280 + ₹10 = ₹290
Answer: The total cost of flour is ₹290.
Exercise: Let Us Do | Q: 54 | (Page Page 9)
For More Understanding
Explanation
The chapter explains multiplication with weights. Weight of flour = 7 kg 250 g = 7.25 kg. Cost per kg = ₹40. Total cost = 7.25 × ₹40 = ₹290. Alternatively: 7 kg at ₹40/kg = ₹280, and 250 g = 0.25 kg at ₹40/kg = ₹10. Total = ₹280 + ₹10 = ₹290.
Solution Steps
Step 1: Convert weight to kg: 7 kg 250 g = 7.25 kg
Step 2: Calculate cost: 7.25 × ₹40 = ₹290