What must be added to each term of the ratio 2 : 3, so that it becomes equal to 4 : 5?
4
2
3
9
Let the number to be added be x, then (2+x):(3+x)=4:5
⇒2+x3+x=45⇒5(2+x)=4(3+x)⇒10+5x=12+4x⇒5x−4x=12−10⇒x=2
What number must be added to each term of the ratio 14:23 so that it may becomes equal to 8:11?