Question

O. Find x if
X:31:4:1​

Answer 1

Answer:

x:31::4:1

It can be written as x/31 = 4/1

=> x×1 = 31×4

=> x = 124 (Ans)

Answer 2

x :31 : : 4:1

product of means =product of extremes

x×1=31×4

x=124

hope this helps