Question 3

Akka can bake 100 cakes in 20 hours, Akka and Tai together can bake 75 cakes in 10 hours. How many cakes Tai can bake in 20 hours?

Solution

Cakes baked by Akka in 1 hour = $$\frac{100}{20} = 5$$

Cakes baked by Akka and Tai together in 1 hour = $$\frac{75}{10} = 7.5$$

=> Cakes baked by Tai in 1 hour = 7.5 - 5 = 2.5

$$\therefore$$ Cakes baked by Tai in 20 hours = 20 $$\times$$ 2.5 = 50

=> Ans - (B)

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