Question

At Dubai metro station, in a week 320 trains arrived. Out of these 5% arrived early and 15% arrived late. How many arrived on time?
HELP PLEASE

Answer 1

The number of trains that arrived Dubai metro station on time is; 272 trains.

• We are told that 320 trains arrived the Dubai metro station in a week.

• Now, we are told that 5% got there early and 15% got there late.

This means, the percentage that got there on time is;

100% - % of trains that got there late.

• Therefore, percentage of trains that got there on time is;

100% - 15% = 85%

• Since 85% of the trains got there on time, then number of trains that got there on time is;

85% × 320 = 272

• Therefore, we can conclude that 272 trains arrived on time.

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