# SAT Math Videos on Exponents (Part - 1)

Problem 1 :

If a-1/2 = 3, what is the value of a?

A)  -9

B)

C)

D)  9

Solution :

Problem 2 :

Let n = 12 + 14 + 16 + 18 +...............+ 150. What is the value of n?

A)  10

B)  20

C)  25

D)  30

Solution :

Problem 3 :

If 42n + 3 = 8n + 5, what is the value of n

A)  10

B)  20

C)  25

D)  30

Solution :

Problem 4 :

If 3x = 10, what is the value of 3x - 3?

A)  ¹⁰⁄₃

B)  ¹⁰⁄₉

C)  ¹⁰⁄₂₇

D)  ²⁷⁄₁₀

Solution :

Problem 5 :

If x2y3 = 10 and x3y2 = 8, what is the value of x5y5?

A)  18

B)  20

C)  40

D)  80

Solution :

Problem 6 :

If a and b are positive integers, which of the following is greatest?

A)  (-2a)b

B)  (-2a)2b

C)  (2a)b

D)  2a2b

Solution :

Problem 7 :

If x10 = 5 and x9/y = 5555, find the value of 1/xy.

A)  5

B)  1111

C)  2525

D)  5555

Solution :

Problem 8 :

A)  212

B)  44

C)  82

D) The value can not be determined from the information given

Solution :

Problem 9 :

Solution :

Problem 10 :

Solution :

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