Question

Which of the following is in proportion??
1) 2:5 = 1:5
2) 7:10 = 3:5
3) 2:10 = 5:25
4) 9:5 = 2:11

Answer 1

Answer:

3) Is the answer to your question

Answer 2

Answer:

in proportion product of means = product of extremes

1) 2*5 not equal to 1*5

so not in proportion

2) 7*5 not equal to 10*3

not in proportion

3) 2*25= 10*5

50=50

so in proportion

4) 9*11 not equal to 5*2

not in proportion