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Question

On a saturday,Mrs Pang spent 50% of her time at home doing housework.She spent 20% of the remaining time at home baking a cake.She spent 5 h doing housework.How much time did she spend on baking the cake

Answer

Suggested answer:

50% of her time doing housework => 5 hr, therefore remaining 50% equal 5 hr

5hr x 20% = 1 hr

Ans: 1 hr baking cake

 

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Housework –> 50% (1/2 = 5/10)

Remaining time –> 50% (1/2)

Baking cake –> 20% of R

                        = 20/100 × 1/2

                        = 1/5 × 1/2

                        = 1/10

5u = 5

1u = 5÷5

     = 1

Hour spent on baking cake = 1u

                                                   = 1 hour

 

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