It takes 63 minutes for four people to paint nine walls how many minutes does it take seven people to paint four walls?
+658 Hint Question:
How many minutes does it take for ONE person to paint 9 walls?
How many minutes does it take for ONE person to paint 4 walls?
+343 You can use inverse ratios. You should search them up and study them (just a tip)! :)
+22 Solve for the speed of one person and multiply by 7 for seven people to find their speed.
