You and two friends scored all 7 runs for your team in a baseball game. Jeff scored twice as many runs as you, and Mary scored twice as many runs as Jeff. How many runs did Jeff score?

Answer 1

runs scored by you --- x
runs scored by Jeff --- 2x
runs scored by Mary -- 2(2x) = 4x

x+2x+4x=7
7x=7
x=1

Jeff scored 2(1) or 2 runs , (you had one and Mary had 4)