Jun can paint a room in 4 hours, which means he can paint 1/4 of the room in 1 hour. Similarly, Arnold can paint a room in 7 hours, which means he can paint 1/7 of the room in 1 hour.

When they work together, their combined rate of work is (1/4 + 1/7) rooms per hour. This simplifies to 11/28 rooms per hour.

So, if they work together for x hours, they can paint 11/28 * x rooms. This is the part of the job they do by working for x hours.

Question

Jun can paint a room in 4 hours, which means he can paint 1/4 of the room in 1 hour. Similarly, Arnold can paint a room in 7 hours, which means he can paint 1/7 of the room in 1 hour.

When they work together, their combined rate of work is (1/4 + 1/7) rooms per hour. This simplifies to 11/28 rooms per hour.

So, if they work together for x hours, they can paint 11/28 * x rooms. This is the part of the job they do by working for x hours.

Knowee AI · Accepted Answer

Jun can paint a room in 4 hours, which means he can paint 1/4 of the room in 1 hour. Similarly, Arnold can paint a room in 7 hours, which means he can paint 1/7 of the room in 1 hour.

When they work together, their combined rate of work is (1/4 + 1/7) rooms per hour. This simplifies to 11/28 rooms per hour.

So, if they work together for x hours, they can paint 11/28 * x rooms. This is the part of the job they do by working for x hours.

Jun can paint a room in 4 hours and Arnold can do it in 7 hours. What part of the job they do by working for x hours?

Question

Jun can paint a room in 4 hours and Arnold can do it in 7 hours. What part of the job they do by working for x hours?

Solution

Similar Questions

Upgrade your grade with Knowee