1. What is 0.2 × 0.3?
- A0.06
- B0.6
- C0.5
- D0.006
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Answer: A) 0.06
Multiply without decimals: 2 × 3 = 6. Total decimal places = 1 + 1 = 2, so the answer is 0.06.
Class 7 Multiplication of Decimals — practice questions with answers
Fractions and Decimals · 5 sample questions from the school syllabus. Try each one, then open the answer and the worked solution.
2. What is 0.8 × 0.5?
- A0.4
- B0.40
- C4
- D0.04
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Answer: A) 0.4
8 × 5 = 40. Two decimal places give 0.40 = 0.4.
3. What is 2.05 × 4?
- A8.2
- B8.20
- C82
- D0.82
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Answer: A) 8.2
205 × 4 = 820. Two decimal places give 8.20 = 8.2.
4. A tailor in Indore stitches a shirt using 1.25 m of cloth.
He receives an order for 16 identical shirts.
How many metres of cloth are needed in all?
He receives an order for 16 identical shirts.
How many metres of cloth are needed in all?
- A20 m
- B18 m
- C200 m
- D16.25 m
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Answer: A) 20 m
Total = 1.25 × 16. 125 × 16 = 2000, two decimal places give 20.00 = 20 m.
5. A factory in Ludhiana fills oil into tins.
Each tin holds 4.5 litres, and oil costs ₹140.5 per litre.
The factory fills 20 tins for a customer.
What is the total cost of the oil in all 20 tins?
Each tin holds 4.5 litres, and oil costs ₹140.5 per litre.
The factory fills 20 tins for a customer.
What is the total cost of the oil in all 20 tins?
- A13910
- B25290
- C11380
- D12645
Show answer
Answer: D) 12645
Oil in one tin = 4.5 litres. Total oil = 4.5 × 20 = 90 litres. Cost = 90 × 140.5 = ₹12645.
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