# If 80% of A = 20% of B and B = 5x% of A, then the value of x is - Mathematics

MCQ

If 80% of A = 20% of B and B = 5x% of A, then the value of x is

• 75

• 80

• 90

• 85

#### Solution

80

Explanation:

(80"A")/100=(20"B")/100

B = 4A

"B"=(5"x A")/100

4"A"=(5"x A")/100

80 = x

Concept: Percentage, Discount and Partnership (Entrance Exam)
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