Question

COMMERCIAL MATHEMATICS
Chapter 8: Ratio And Proportion
1. If the cost of 15 pens is 150, what is the cost of 7 pens?
2. Sahil covers 5 km in 50 minutes. How much distance will he cover in 150 minutes?
3. 10 boxes of apples, of 50kg each, cost 6000. Find the cost of 20 boxes of apples weighing
4. A family of 6 members consumes 20kg of wheat flour in a month. What will be the monthly
flour
, if they are joined by four guests to stay with them for a month?
5. 40 chocolate bars cost 800. What will be the cost of 65 chocolate bars? How many chocola
for 1680?
6. Find the ratios:
d. No. of days in Apri
a. 2 kg to 20 kg b. 7 m to 17 m c. 5 minutes to 50 minutes
7. Megha bought a small cardboard piece for 90 paise and a packet of coloured pens for 330
price of the cardboard piece to the price of the coloured pens.
8. Arun is carrying a packet weighing 40g with his left hand and holding a box weighing 16
Find the ratio of weights he is carrying in his left hand to the weight in his right hand.
9. Number of boys in a school are 360 and the rest are girls. If the total strength of the scho
a. the number of boys to the number of girls.
b. the number of girls to the
c. the number of boys to all students in the school. d. 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
1. Find three equivalent ratios for 6:11.
2. Find the missing numbers: 4:5= 1:20 = 40:=:100
3. 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
A box contains 80 candies. Divide these candies between Karan and Sara in the ratio
Two numbers are in the ratio 3:7 and their sum is 230. Find the numbers.
An alloy of aluminium and copper weighs 15-kg. If the ratio of aluminium to copper
weight of aluminium in the alloy in grams.
Are the ratios in proportion? a. 60:88 and 180:264 b. 3 km to 9000 m and
Determine if the numbers are in​

Answer 1

Answer:

hello I am keshav abdullah khan. I love you