1. If 1 pencil costs ₹5, what is the cost of 4 pencils?
- A₹15
- B₹20
- C₹25
- D₹9
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Answer: B) ₹20
1 pencil = ₹5, so 4 pencils = 4 × 5 = ₹20.
Class 6 Unitary Method — practice questions with answers
Ratio and Proportion · 5 sample questions from the school syllabus. Try each one, then open the answer and the worked solution.
2. If 9 books cost ₹540, what is the cost of 4 books?
- A₹240
- B₹60
- C₹216
- D₹135
Show answer
Answer: A) ₹240
1 book = 540 ÷ 9 = ₹60. So 4 books = 4 × 60 = ₹240.
3. If a dozen bananas cost ₹60, what is the cost of 20 bananas?
- A₹100
- B₹120
- C₹90
- D₹80
Show answer
Answer: A) ₹100
A dozen = 12 bananas. 1 banana = 60 ÷ 12 = ₹5. So 20 bananas = 20 × 5 = ₹100.
4. An auto-rickshaw in Bengaluru charges a fixed rate per kilometre.
For a 12 km ride the meter showed ₹192.
A passenger then takes a 17 km ride at the same rate.
How much will the 17 km ride cost?
For a 12 km ride the meter showed ₹192.
A passenger then takes a 17 km ride at the same rate.
How much will the 17 km ride cost?
- A₹272
- B₹256
- C₹289
- D₹240
Show answer
Answer: A) ₹272
Rate per km = 192 ÷ 12 = ₹16. Cost of 17 km = 17 × 16 = ₹272.
5. A sweet shop in Varanasi packs laddoos at a fixed rate per box.
The owner notices that 9 boxes cost a customer ₹1107, and a different customer paid ₹1845 for boxes at the same rate.
How many more boxes did the second customer buy compared to the first?
The owner notices that 9 boxes cost a customer ₹1107, and a different customer paid ₹1845 for boxes at the same rate.
How many more boxes did the second customer buy compared to the first?
- A5
- B6
- C12
- D7
Show answer
Answer: B) 6
Cost per box = 1107 ÷ 9 = ₹123. Second customer's boxes = 1845 ÷ 123 = 15. Difference = 15 − 9 = 6 boxes.
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