SAT Math Practice Problems

Question:


To arrive on time a plane needs 15 hours to complete a normal trip. If the plane must arrive in 12 hours, by what percent must the speed of the plane be increased?

A) 20%
B) 25%
C) 40%
D) 50%
E) 60%

Choose Your Answer:

 
A B C D E
 
Re-Test me over this question
-Mixed Numbers such as 2
1
2
must be entered as either a decimal, 2.5 or a fraction, 3/2.

-If a Decimal Answer does not fit in the space, it MUST be rounded AND contain 4 characters, including the decimal.
For example,
2
3
would be .667 while .666 would be incorrect and .67 would be incorrect

-Do NOT add a leading zero to a decimal, so 0.33 would be incorrect, while .33 would be correct.
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Reference:

 

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