Question

c. 5 minutes to 50 minutes
3. 10 boxes of apples, of 50 kg each, cost 6000. Find the cost of 20 boxes of apples weighing 40 kg each.
5. 40 chocolate bars cost 800. What will be the cost of 65 chocolate bars? How many chocolate bars can web
4. A family of 6 members consumes 20 kg of wheat flour in a month. What will be the monthly consumplion
d. No. of days in April to No. of days in
7. Megha bought a small cardboard piece for 90 paise and a packet of coloured pens for 30. Find the ratio of
8. Arun is carrying a packet weighing 40g with his left hand and holding a box weighing 16 kg in the other hand
9. Number of boys in a school are 360 and the rest are girls. If the total strength of the school is 750, find the ra
b. the number of girls to the number of boys.
d. all students in the school to the number of girls
16. An alloy of aluminium and copper weighs 15-kg. If the ratio of aluminium to copper is 3:4 in the alloy, finds
COMMERCIAL MATHEMATICS
Chapter 8: Ratio And Proportion
1. If the cost of 15 pens is R150, what is the cost of 7 pens?
2. Sahil covers 5km in 50 minutes. How much distance will he cover in 150 minutes?
are joined by four guests to stay with for a month?
for 1680?
6. Find the ratios:
a. 2 kg to 20kg
b. 7 m to 17 m
the cardboard piece to the price of the
the ratio of weights he is carrying in his left hand right hand.
a. the number of boys to the number of girls.
c. the number of boys to all students in the school.
10. Compare the ratios:
a. 5:7 and 2:5. b. 1:4 and 1:6 c. 3:4 and 5: 12
11. Find three equivalent ratios for 6:11.
12. Find the missing numbers: 4:5=0:20 = 40:=:100
13. Express each of the following ratio in its simplest form:
a. 240g to 96 kg b. 80:620
c. 70 paise to 100
d. 30 mL to 15L
14. A box contains 80 candies. Divide these candies between Karan and Sara in the ratio 9:11.
15. Two numbers are in the ratio 3:7 and their sum is 230. Find the numbers.
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weight of aluminium in the alloy in grams.
17. Are the ratios in proportion? a. 60:88 and 180:264 6.3 km to 9000 m and 6000g to 4kg
18. Determine if the numbers are in proportion: a. 15.93,60, 272 b. 21, 119,30, 170
19. Find x if 7, 9, 84, X are in proportion.
20. The map of a stadium is drawn on a scale 1: 80. If the actual length of the field is 140m, what will it be on the
21. Given that is of y, find a such thatx: y = 0:52.
22. Ajay drove at a constant speed covering a distance of 50 kilometres in 80 minutes. What was his speed perhee
23. The height of a tower is 132 m. A model of this tower is made such that the ratio between the height of the a
tower and that of the model is 120:1. Find the height of the model.
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Answer 1

Answer:

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