Question 77

Chutki can bake 30 cakes in 15 hours. Chutki and Badki together can bake 90 cakes in 30 hours. How many cakes Badki can bake in 10 hours?

Solution

Cakes baked by Chutki in 1 hour = $$\frac{30}{15} = 2$$

Cakes baked by Chutki and Badki together in 1 hour = $$\frac{90}{30} = 3$$

=> Cakes baked by Badki in 1 hour = 3 - 2 = 1

$$\therefore$$ Cakes baked by Badki in 10 hours = 10 $$\times$$ 1 = 10

=> Ans - (C)

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