Unit Practice Paper III
Un
D
1. If the cost of 15 pens is 150, what is the cost of 7 pens?
3. Sahil covers 5 km in 50 minutes. How much distance will he cover in 150 minutes?
by four guests to stay with them for a month
c. 5 minutes to 50 minutes
TH
The
Chapter 8: Ratio And Proportion
4. A family of 6 members consumes 20kg of wheat flour in a month. What will be the monthly consumption of we
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 we buy
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 love
8. Arun is carrying a packet weighing 40g with his left hand and holding a box weighing 16 kg in the other van.
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 ratio
c. the number of boys to all students in the school. d. all students in the school to the number of girls.
COMMERCIAL MATHEMATICS
for 1680?
6. Find the ratios:
a. 2 kg to 20kg
b. 7 m to 17 m
of cardboard piece to the price of the
Find the ratio of weights he is carrying in his left hand to the weight in his right hand
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 =:20 = 40:0=0:100
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 15 L
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.
16. An alloy of aluminium and copper weighs 15-kg. If the ratio of aluminium to copper is 3: 4 in the alloy, finds
weight of aluminium in the alloy in grams.
17. Are the ratios in proportion? a. 60:88 and 180:264 b. 3 km to 9000 m and 6000 g to 4kg
18. Determine if the numbers are in proportion: a. 15, 93, 60, 272
9. Find x if 7, 9, 84, x are in proportion.
b. 21, 119, 30, 170
0. 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 map
2 th of y, find a such thatx:y = a:52.
Let
cal
TE
EMATICS
SC
r1
. Given that x is
4
Ajay drove at a constant speed covering a distance of 50 kilometres in 80 minutes. What was his speed per hour
The height of a tower is 132 m. A model of this tower is made such that the ratio between the height of the actual
tower and that of the model is 120:1. Find the height of the model.
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Answer:
You are Hayden/Hazel living in Kochi. You had to attend a wedding ceremony in Mumbai
and travelled with your parents in an airplane. You are very excited as it was your first
experience by plane. Write a Diary entry of about 100-120 words sharing your experience
Thank u
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