Question 56 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 |
Jaggery: 1 kg 400 g at ₹50 per kg
Correct Answer
Given: Weight of jaggery = 1 kg 400 g, Cost per kg = ₹50
Conversion: 1 kg 400 g = 1.4 kg
Calculation: Total cost = 1.4 × ₹50 = ₹70
Answer: The total cost of jaggery is ₹70.
Alternative Method: Cost for 1 kg = ₹50 Cost for 400 g = 0.4 × ₹50 = ₹20 Total cost = ₹50 + ₹20 = ₹70
Exercise: Let Us Do | Q: 58 | (Page Page 9)
For More Understanding
Explanation
The chapter explains multiplication with weights. Weight of jaggery = 1 kg 400 g = 1.4 kg. Cost per kg = ₹50. Total cost = 1.4 × ₹50 = ₹70. Alternatively: 1 kg at ₹50/kg = ₹50, and 400 g = 0.4 kg at ₹50/kg = ₹20. Total = ₹50 + ₹20 = ₹70.
Solution Steps
Step 1: Convert weight to kg: 1 kg 400 g = 1.4 kg
Step 2: Calculate cost: 1.4 × ₹50 = ₹70