Question

in which of the following sets,are the numbers in proportion? 1)5,10,15,20 2)5,20,20,100 3)5,10,10,20 4)10,20,30,40​

Answer 1

Answer:

3

Step-by-step explanation:

5*20=10*10

100=100

by proportion

Answer 2

Answer:

3

Step-by-step explanation:

5*20=10*10.

product of extreme=product of means

100=100

so,they are in proportion