Question

1. Give the ratio 16 to 40 in the simplest form.
2. Express the ratio 25 cm to 1 m in the simplest form.
3. Find the ratio 18 seconds to 1 hour in the simplest form.
4. Divide 90 in the ratio 3: 7.
5. Find x in the proportion : 6:x :: 3:7.
6. Determine whether the following are in proportion.
(a) 2, 3, 4, 5
7. 16 : 24 20:30. True or False
8. 5 pens cost 12. How much will 20 pens cost ?
(b) 4, 6, 8, 12.​

Answer 1

Answer:

I will give remaining ans. tomorrow