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Unitary Method
Last updated at Sept. 26, 2018 by Teachoo
Example 14 Cost of 1Number of envelopes purchased in Rs 35 = 105 Number of envelopes purchased in Rs 1 = 105/35 Number of envelopes purchased in Rs 10 = 105/35 × 10 = 21/7 × 10 = 3 × 10 = 30 ∴ 30 envelopes can be purchased for Rs 10 05 envelopes is Rs 35. How many envelopes can be purchased for Rs 10?