X is the number of dog y is the number of cats , y=40 25% of x is 25*x /100=25x/100=x/4 <span>and there are 25% more cats than dogs means y+ x/4=x implies 40=(3/4)x </span>x=160/3=53 so the number of dogs is 53 and the number of cats is 40 the total number is 53+40=93