Question

Find the value of a X : 400 :3:12​

Answer 1

Answer:

Product of extreme=product of means

X×12=400×3

=X=1200/12

X=100

Answer 2

x=400

x/400=3/12

In LHS we transfer 400 to RHS it will get multiply

then,

x=3/12×400

=1200/12

=100