book Maths Puzzle Numerical Ability

There are 18 animals in the barnyard. Some are chickens and some are cows. I counted 50 legs in all. How many of the animals are chickens and how many are cows?

Read Solution (Total 0)

book Other Question

A line is tangent to the circle whose equation is x^+y^+6x-6y-2=0 at the point (1,5). Find the Slope-intercept form of the tangent line.

Can you help??
If 4 workers can paint 5 trucks 1 hour, how many will be needed to paint 200 trucks in 8 hours?

Thank You.