Find the ratio of the following a) 24 to 40 b) 15 min to 1 hour c) 35cm to 85cm
2. Determine which of the following are in proportion
a) 24,96,25,100 b) 6,24,8,32 c) 40,30,60,45
3. The number of boys and girls in a school are 1168 and 1095 respectively. Express the ratio of
the number of boys to that of the girls in the simplest form.
4. Write the middle terms and extreme terms. Determine if the ratios form a proportion.
a) 15cm: 45cm and Rs 40: Rs 160
b) 2 Kg :80 Kg and 25g : 625g
5. The cost of 12 m cloth is RS 360. Find the cost of 15m of cloth.
PART B
6. Akash works as a teacher and earns ₹ 15000 per month. His wife who is a Doctor earns
Rs18000 per month. Find the following ratios
a) Akash’s income to the income of his wife
b) Akash’s income to their total income.
7. A tailor earns Rs 15000 in 15 months. How much does he earn in 7 months?
8. The ratio of the length of a school ground to its width is 5:2. Find its length if the width is
40m.
9. Divide 40 pens between Sheela and Leela in the ratio 3:2.
10. Present age of father is 62 yrs and that of his son is 24 yrs. Find the ratio of
a) Present age of father to the present age of son.
b) Age of father to the age of son, when son was 10 yrs old.
c) Age of father after 10 yrs to the age of son after 6yrs.
d) Age of father to the age of son when father was 30 yrs old.
PART C
11. Rahul drives his car and travels 10 Km in 12mins. What is the distance covered by him in 1
hour?
12. Find the value of ‘x’ in the following :
a) 4: x : : 20: 35 b) x : 19 : : 142 : 71
13. The first ,second and fourth terms of a proportion are 6, 18 and 25 respectively. Find its
third term.
14. Ravi purchases 20 pens for Rs 300 and Manish buys 14 pens for Rs 168. Can you say who
got the pens cheaper?
15. The price of 3mts of cloth is Rs 79.50. Find the price of 15mts of such cloth.