Sara has some oranges. She sold 40% more than she ate. If she sold 70 oranges, how many did she eat?

25
50
75
100
None of the above.

Question

Sara has some oranges. She sold 40% more than she ate. If she sold 70 oranges, how many did she eat?

    25
    50
    75
    100
    None of the above.

teddyiswatshecallsme · Answer

It's very simple 

100% = how much she ate 
140% = how much she sold 

140% = 70 oranges 

To find 1%, you divide 140% by 140 to find 1%. 
To keep the equation equal, you divide 70 by 140 as well 

140%/ 140 = 1% 
70/ 140 = 0.5 oranges = 1% 

To find 100% you multiply 1% by 100. 

1% x 100 = 100% 
0.5 x 100 = 50 

It's quite simple actually, you just have to find out what 1% is. And then you multiply 1% by 100 to find 100% or the original value etc.