Answer:
Step-by-step explanation:
Answer:0.0064516129
let the time taken to be filled by both pipes be y
1/2 +1/8=1/y
(4+1)/8=1/y
5/8=y
cross multiplying
5y=8
y=8/5
=1.6hrs
Answer: 169.52
Step-by-step explanation
%increase which is 5% =100 x final - initial
---------------------
initial
the initial is $169.52
and the final $178