# GRE Math : How to find the whole from the part

## Example Questions

### Example Question #827 : Gre Quantitative Reasoning

36 is what percent of 145

36%

403%

24.8%

40.3%

2.48%

24.8%

Explanation:

divide: 36/145 = 0.248; multiply by 100 to get percent

24.8%

### Example Question #828 : Gre Quantitative Reasoning

36 is x% of 133.  What is x

27

10

42

22.4

19

27

Explanation:

36 is x% of 133

that means that 36 = (x%)(133)

x% = 36/133 X 100 = 27%

### Example Question #1 : How To Find The Whole From The Part

Max walks 1 mile in 15 minutes. Belinda takes only 12 minutes to walk 1 mile. If Max and Belinda leave their homes at the same time, how far has Belinda walked when Max has walked 1 mile?

3/2 mile

1 mile

4/3 mile

3/4 mile

5/4 mile

5/4 mile

Explanation:

Belinda walks faster than Max, so she should walk over a mile in the same time that Max walks 1 mile. We can eliminate the answer choices that aren't over a mile. It takes Max 3 minutes longer to walk a mile, so Belinda will walk for 3 more minutes after she finishes her first mile. If she walks 1 mile in 12 minutes, she walks 1/12 miles in 1 minute, or 3/12 = 1/4 mile in 3 minutes. So she walks 1 1/4 miles, or 5/4 miles.

### Example Question #241 : Arithmetic

If  is what percent of ?