Given that
time required to filled 1/7 of pool = 1/10
so time required to fill 1 pool = 1/10 ÷ 1/7 = 1/10 × 7 = 7/10 hrs
So 0.7 hrs will require to fill the pool at given rate
Answer:
2 pieces (that each equal 1/3 of the whole bar)
This is what you get when you simplify the problem.