Check sibling questions

Ex 12.3, 4 - Cost of 5 kg of wheat is Rs 30.50. (a) What will be cost

Ex 12.3, 4 - Chapter 12 Class 6 Ratio And Proportion - Part 2
Ex 12.3, 4 - Chapter 12 Class 6 Ratio And Proportion - Part 3
Ex 12.3, 4 - Chapter 12 Class 6 Ratio And Proportion - Part 4

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Ex 12.3, 4 Cost of 5 kg of wheat is Rs 30.50. (a) What will be the cost of 8 kg of wheat? Cost of 5 kg wheat = Rs 30.50 Cost of 1 kg wheat = Rs (30.50/5) Cost of 8 kg of wheat = Rs 30.50/5 × 8 = 30.50/5 × 8 = 30.50 × 8/5 = 3050/100 × 8/5 = 305/10 × 8/5 = 305/5 × 8/10 = 61 × 8/10 = 488/10 = 48.8 ∴ It costs Rs 48.80 to buy 8 kg of wheat. Ex 12.3, 4 Cost of 5 kg of wheat is Rs 30.50. (b) What quantity of wheat can be purchased in Rs 61?Quantity of wheat purchased in Rs 30.50 = 5 kg Quantity of wheat purchased in Rs 1 = 5/30.50 kg Quantity of wheat purchased in Rs 61 = 5/30.50 × 61 = 5 × 1/30.50 × 61 = 5 × 100/3050 × 61 = 5 × 10/305 × 61 = (61 × 5 × 10)/305 = (305 × 10)/305 = 10 kg ∴ 10 kg of wheat can be purchased with Rs 61

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Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 12 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.