If the number of calories burned by A and B increased by 10% and 20% respectively from Friday to Saturday, what was the total number of calories burned by them together on Saturday?

If the number of calories burned by A and B increased by 10% and 20% respectively from Friday to Saturday, what was the total number of calories burned by them together on Saturday? Correct Answer 372

Total number of calories burnt on Saturday
$$\eqalign{& = 180\times \frac{110}{100}+145\times\frac{120}{100} \cr& = 198 + 174 \cr& = 372 \cr} $$
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