Ratio, proportion, rates and exchange

Question 1 of 10

Kofi, Ama and Yaw share GH₵ 1,400 in the ratio 5 : 6 : 3. (a) Find each person's share. (b) Yaw gives all his share to Kofi. Find the new ratio of Kofi's money to Ama's money in its simplest form.

Question 2 of 10

y varies directly as x. If y = 8 when x = 2, find y when x = 9. y = ___

Question 3 of 10

Exchange rates convert one currency to another.

Question 4 of 10

If a : b = 2 : 3 and b : c = 4 : 5, then a : b : c is

Question 5 of 10

y varies directly as x. If y = 36 when x = 6, find y when x = 7. y = ___

Question 6 of 10

6 workers can build a wall in 17 days. How long will 3 workers take?

Question 7 of 10

Speed and time are directly proportional for a fixed distance.

Question 8 of 10

10 workers can build a wall in 17 days. How long will 5 workers take?

Question 9 of 10

Decrease 80 in the ratio 3 : 4.

Question 10 of 10

Kofi, Ama and Yaw share GH₵ 400 in the ratio 5 : 3 : 2. (a) Find each person's share. (b) Yaw gives all his share to Kofi. Find the new ratio of Kofi's money to Ama's money in its simplest form.