Question

One warehouse had 185 tons of coal, another one had 237 tons. The first warehouse delivered 15 tons of coal to its clients daily, the second one delivered 18 tons of coal to its clients daily. In how many days will the second warehouse have 1.5 times more coal than the first one?

Answer 1

In 9 days will the second warehouse have 1.5 times more coal than the first one

Explanation:

The coal left in warehouses after x days can be found using the equation:

• first warehouse: 185 - 15x

• second warehouse= 237-18x

Let the second warehouse have 1.5 times more coal than the first one after n days then

1. 1.5 ×(185 - 15n)=237-18n which gives:
2. 277,5-22,5n=237-18n and
3. 40,5=4,5n
4. 9=n