Current location - Training Enrollment Network - Mathematics courses - A math problem, I bought 100 rabbits with 100 yuan, including male rabbits 1 7 yuan, female rabbits 1 5 yuan and 7 rabbits 1 yuan. I asked some male rabbits. ...
A math problem, I bought 100 rabbits with 100 yuan, including male rabbits 1 7 yuan, female rabbits 1 5 yuan and 7 rabbits 1 yuan. I asked some male rabbits. ...
Solution: Set X male rabbits, Y female rabbits and Z small rabbits.

7x+5y+ 1/7z= 100

X, y are integers, and z is divisible by 7.

So x=4, y= 12 and z=84.

Answer: There are 4 male rabbits, 0/2 female rabbits and 84 small rabbits.

You can check:

4×7+ 12×5+ 1/7×84

=28+60+ 12

= 100 (yuan)