# SAT MATH VIDEO SOLUTIONS (Part - 1)

Problem 1 :

Stephen wins the lottery and decides to donate 30% of his winnings to charity. Then he decides to give 20% of what he has left to his mother. What percent of his winnings does stephen have left for himself?

A)  67%

B)  56%

C)  54%

D)  50%

Solution :

Problem 2 :

The perimeter of an equilateral triangle with sides of length s is p. What is the perimeter of a square with sides of length 3s, in terms of p?

A)  p2

B)  12p

A)  4p

A)  3p

Solution :

Problem 3 :

If a + b = c, which of the following is equal to a2 + b2?

A)  c + 2ab

B)  c2

C)  c2 - ab

D)  c2 - 2ab

Solution :

Problem 4 :

If m/n = 2/3, what is the value of 2n/m + 5?

Solution :

Problem 5 :

If k is an integer cosntant greater than 1, which of the following values of x satisfies the inequality

x/3 + 1 ≥ k

A)  k - 3

B)  k

C)  3k - 4

D)  3k - 2

Solution :

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