Question

The number of horses on a farm is twice the number of ducks. The total number of feet of ducks and horses counted together is 70. The number of ducks is

Answer 1

let the no. of ducks be x

then the no. of. horses=2x

given     2x+4(2x)=70

             2x+8x=70

             10x=70

             x=7

then the no. of ducks=7