a fan consumes 1 unit of electricity in 3 hours Rahul has two fans which consumed 21 units this month for how many hours did he use the fans this month​

Answer 1

21 u * 3hr/1u = 63 hr
or, as a proportion,
x/21 = 3/1

Answer 2

Ygvurvrugfdffbffffmfgjmxncbdyeveg hfbdhfhvhh

Answer 3

Math