Question

There are some boys and dogs at a place. If total number of heads is 7 and total
number of legs is 20. How many boys and how many dogs are there?​

Answer 1

Answer:

there are total 4 dogs and 3 boys

Answer 2

Answer:

• let boys be x and dogs be y.
• number of head equal to X + y equal to 7
• number of legs equal to 2 X + 4 y equal to 20.
• equating, both equations we get that number of dogs equal to 3 and number of boys equal to 4....