Question

Water flows over the Browne Falls at a rate of 3680 litres per second. After rain, this rate increases to 9752 litres per second. Calculate the percentage increase in this rate.

Answer 1

Answer:

165%.

Step-by-step explanation:

Actual increase in water flow/sec= 9752-3680=6072

So, the percentage of increase is [(6072÷3680)×100] =165

Answer 2

Given:

Water flows over the Browne Falls at a rate of 3680 litres per second. After rain, this rate increases to 9752 litres per second.

Solution:

Know that,

$\[{\rm{Perentage}}\,{\rm{increase}} = \frac{{{\rm{Increased}}\,{\rm{value}} - {\rm{Initial}}\,{\rm{value}}}}{{{\rm{Initial}}\,{\rm{value}}}} \times 100\]$

Therefore,

$\[{\rm{Perentage}}\,{\rm{increase}} = \frac{{9752 - 3680}}{{3680}} \times 100\]$

                            $\[\begin{array}{l} = \frac{{6072}}{{3680}} \times 100\\ = \frac{{6072}}{{3680}} \times 100\\ = 1.65 \times 100\\ = 165\% \end{array}\]$

Hence, the percentage increase in this rate is 165%.