Question

An oil-pump pumps 5 units of oil in 40 minutes. How many units does it pump in 1 hour?​

Answer 1

✡$\frac{15}{2}units$ or 7.5 units☑

Step-by-step explanation:

Given⤵

➡An oil-pump pumps 5 units of oil in 40 minutes.

To find⤵

➡How many units does it pump in 1 hour?

Solution⤵

➡In 40 min it pump 5unit oil.

➡Then in one minute it pump$\frac{5}{40}$unit oil.

⚫We know in one hour there are 60 min.

➡Then it pump in 60 min = $\frac{5}{40}×60$

➡= $\frac{1}{8}×60$

➡$\frac{60}{8}$

➡$\frac{15}{2}Units\: or\: 7.5 units$

Hope this is helpful to you!

Answer 2

Here is your answer

Solved By Unitary Method ( Cross multiplication)