Percentage increase= increase in amount ÷ original amount
Solve them all? Or are these options
No. It’s A. There are 8 km per 5 miles. How many Miles are in 120 km? In other words, 120 km/ x miles. Find x. You cross multiply giving you 8x=600. Divide by 8 on each side. Giving you x=75. So your answer is A
1/2 = 50%
3/4 = 75%
So something in between that could be 2/3 (which equals 66.67% )
A few others could be: 3/5 ( equals to 60% ) , 7/10 ( equals 70%)
Hope that helps :)