DIGITAL SAT MATH PROBLEMS AND SOLUTIONS
(Part - 7)

Problem 1 :

In a shipment of 45,000,000 shirts, 4,950,000 are white. What percentage of the shirts are white shirts?

A)  11%

B)  22%

C)  78%

D)  89%

Problem 2 :

If 3(x – 8) – 16 = 8(x + 10) + x, what is the value of 6x?

Solution :

Problem 3 :

8(a – 3) – 17 = 9(a – 3)

In the equation above, what is the value of a – 3?

A)  -20

B)  -17

C)  -14

D)  3

Solution :

Problem 4 :

A school classroom with a total of 4,200 floor tiles is divided into a 30 square-foot lab area and an 80 squarefoot seating area. The number of tiles on the entire classroom floor can be represented by the equation 30a + 80b = 4,200. In this context, which of the following does b represent?

A)  The average number of tiles per square foot in the lab area

B)  The total number of tiles in the lab area

C)  The average number of tiles per square foot in the seating area

D)  The total number of tiles in the seating area

Solution :

Problem 5 :

A triangle has a base that is 65% of its height. If the base were decreased by 13 inches, how would the height need to change to keep the same proportions?

A)  It must increase by 13 inches.

B)  It must increase by 20 inches.

C)  It must decrease by 13 inches.

D)  It must decrease by 20 inches.

Solution :

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