Answer:
I think it's A and C
Step-by-step explanation:
1+6=7
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