Question
Mrs Lau baked 10 cookies more than cakes. Each cookie needed 0.07 kg of flour while each pizza needed 0.4 kg of flour. She used 1.61 kg more flour for the cakes than for the cookies. How many cookies did Mrs Lau bake?
4 m

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Mrs Lau baked 10 cookies more than cakes. Each cookie needed 0.07 kg of flour while each pizza needed 0.4 kg of flour. She used 1.61 kg more flour for the cakes than for the cookies. How many cookies did Mrs Lau bake?