Ratios, Rates and Proportions

Given that a : b = 2 : 5 and b : c = 5 : 4, find a : b : c.

Convert RM 2.70/min to sen/s.

Given that x : y = 2 : 9. If x = 18, y = ?

a : b : c = 2 : 7 : 8 and the value of b = 35. Find the value of a + c.

Is 4 : 6 equivalent to 22 : 33 ?

State 17 mm to 1.2 cm to 2 cm in the form of a : b : c

Determine the ratio of the shaded region to unshaded region.

Determine the rate for the following situation.

Sam drove his car for a distance of 225 km in 2.5 hours. Find the speed, in km per hour, of his car.

The selling price of 4 coconuts is RM10. If Azizah buys 6 coconuts, how much does she need to pay?

Inside Michelle's stationery box, there are 50 pens. 20 are blue pens, 8 are red pens, 10 are black pems amd the remainder ore purple pens. Determine the percentage of purple pens inside Michelle's stationery box.