Question

The cost of 3 envelopes is Rs 15. The cost of 10 envelopes is ____​

Answer 1

→ The cost of 3 envelope is 15

→ So, the cost of 1 envelope is 5

→ Then , the cost 10 envelope is 3 × 5 = 10

→Hence , the cost of 10 envelope is Rs 10

Answer 2

Answer:

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cost of 1 envelope= 15/3= 5 Rs.

cost of 10 envelopes= 10×5= Rs. 50