If 20 percent of the trees in a certain park are evergreens, and 40 pe

Question

If 20 percent of the trees in a certain park are evergreens, and 40 percent of the non-evergreens are maple trees, and there are 75 percent as many oak trees as maple trees in the park, what percent of the trees in the park are not maples, oaks, or ever-greens?

A. 10%
B. 12%
C. 20%
D. 24%
E. 25%

A. 10%
B. 12%
C. 20%
D. 24%
E. 25%

Archit3110 · Answer

total= 100
EG = 20
NEG = 80
Maple; 80*.4; 32
oak = 32*.75 ; 24
total ; 23+20+24 ;76
others ; 24
IMO D

ScottTargetTestPrep · Answer

We can let the number of trees = 100; thus:

20 are evergreen and so 80 are non-evergreen. Thus, 0.4 x 80 = 32 are maple.

The phrase “there are 75 percent as many oak trees as maple trees” means that the number of oaks is 75% of the number of maple trees. Thus, there are 3/4 x 32 = 24 oak trees.

So the percent that are not any of the above types is 100 - 20 - 32 - 24 = 24.

Answer: D

deepchheda09 · Answer

I think there's a typo.
Shouldn't it be 32 instead of 23? (i.e., 32+20+24=76)

Paras96 · Answer

Let's reevaluate the problem step by step:

1. 20 percent of the trees are evergreens.
2. Of the remaining trees (non-evergreens), 40 percent are maple trees.
3. There are 75 percent as many oak trees as maple trees in the park.

Let's assume there are 100 trees in the park for easy calculation:

1. Evergreens: 20% of 100 = 20 trees.
2. Non-evergreens: 100 - 20 = 80 trees.
3. Maple trees among non-evergreens: 40% of 80 = 0.4 * 80 = 32 trees.
4. Oak trees: 75% as many as maple trees, which is 0.75 * 32 = 24 trees.

Now, let's find out what percent of the trees in the park are not maples, oaks, or evergreens:

Total trees in the park: 100
Evergreens: 20 trees
Maple trees: 32 trees
Oak trees: 24 trees

Total of maples, oaks, and evergreens: 20 (evergreens) + 32 (maples) + 24 (oaks) = 76 trees.

Now, the number of trees that are not maples, oaks, or evergreens is:

Total trees in the park - Total of maples, oaks, and evergreens = 100 - 76 = 24 trees.

So, 24 out of 100 trees in the park are not maples, oaks, or evergreens. To express this as a percentage:

(24 trees / 100 trees) * 100% = 24%.

Therefore, 24 percent of the trees in the park are not maples, oaks, or evergreens.

Hence D

epsilon-delta · Answer

Total= 100
EG = 20
NEG = 80
Maple; 80*.4; 32
oak = 32*.75 ; 24
Total ; 32+20+24=76
Others ; 24
Answer: D

bumpbot · Answer

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If 20 percent of the trees in a certain park are evergreens, and 40 pe

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