Question

Which of the following numbers are in proportion?

a) 3.6 ,0.4 , 4.5 , 0.3

b) 8, 2, 20 , 7

c) 20, 2 , 100, 10

d) 20, 18 , 5, 6

• A. b)
• B. d)
• C. a)
• D. c)

Answer 1

The correct option is D

c)

Consider option c) 20, 2 , 100, 10

$20:2=\frac{20}{2}=10$

$100:10=\frac{100}{10}=10$

We got same value 10

So, the numbers 20, 2 , 100, 10 are in proportion