CLASS-6 MATHS CHAPTER-12 (EXERCISE 12.3)

                                                        EXERCISE-12.3

Question 1:

If the cost of 7 m of cloth is Rs 294, find the cost of 5 m of cloth.

Answer:

Cost of 7 m cloth = Rs 294

Cost of 1 m cloth =

Therefore, cost of 5 m cloth = 42 × 5 = Rs 210

Question 2:

Ekta earns Rs 1500 in 10 days. How much will she earn in 30 days?

Answer:

Money earned in 10 days = Rs 1500

Money earned in 1 day =

Therefore, money earned in 30 days = 150 × 30 = Rs 4500

Question 7:

Cost of 4 dozens bananas is Rs 60. How many bananas can be purchased for Rs 12.50?

Answer:

Numbers of bananas bought in Rs 60 = 4 dozens = 4 × 12 = 48

Number of bananas bought in Re 1 =

Therefore, number of bananas bought in Rs 12.50 = = 10 bananas

Thus, 10 bananas can be purchased for Rs 12.50.

Question 8:

The weight of 72 books is 9 kg. What is the weight of 40 such books?

Answer:

Weight of 72 books = 9 kg

Weight of 1 book =

Therefore, weight of 40 books =

Thus, the weight of 40 such books is 5 kg.

Question 11:

Anish made 42 runs in 6 overs and Anup made 63 runs in 7 overs. Who made more runs per over?

Answer:

Runs made by Anish in 6 overs = 42

∴ Runs made by Anish in 1 over =

Runs made by Anup in 7 overs = 63

∴ Runs made by Anup in 1 over = = 9

Clearly, Anup made more runs per over.