Question

Cost of 12 kg sugar is * 540 and 9 kg sugar is purchased in * 405
Exercise 12.3
Alf cost of 2 dozen pens is * 132, find the cost of 45 such pens.
2. If cost of 6 kg apples is 480, find the cost of 15 kg apples.
3. Sachin scored 24 runs in 3 overs and Rahul scored 45 runs in 9 overs. Whose performance is bette
1
4. A travels 105 km in 3 hours and B travels 75 km in 1
hours. Who travels faster?
2
5. A worker earned 15000 in 3 months. How much will he earn in one year?
1
6. A train covers a distance of 180 km in 2-
2
hours. How much time will it take to cover a distance
540 km? How much distance will it cover in 6 hours?
7. Cost of half dozen shirts is * 1200, find the cost of one and half dozen shirts.
8. The cost of 3 chocolates is 54, find the cost of 13 such chocolates.
9. The weight of 5 boxes of apples is 120 kg. Find the weight of 18 such boxes.
0. The bus fare for a distance of 50 km is 60. What is the fare for a distance of 300 km?
MENTAL MATHEMATICS EXERCISE
1. What is the ratio of (i) 3 kg to 600 g (ii) 6 to 1.50
2. Are the following numbers in proportion?​

Answer 1

Answer:

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