London mixes 6 parts yellow paint with 3 parts blue paint to make green. She adds 1 more part of yellow to change the shade of green. What is the new ratio of yellow to blue?

Question

A. 3 to 7

B. 4:7

C. 6 to 4

D. 7/3

Answer 1

You started with 6 parts yellow to 3 parts blue.

Now you have added on one more part yellow.

That gives you 7 parts of yellow.

And 3 parts blue.

So the new ratio is: 7:3 i.e. D

Answer 2

7 TO 3