Question

The given pie chart shows how Mini spent her evening. If Mini spent 2 hrs 30 mins in watching TV programmes, then how much time she spent on jogging?

• A. $1$ hr $15$ mins
• B. $1$ hr $30$ mins
• C. $2$ hrs $15$ mins
• D. $2$ hrs $45$ mins

Answer 1

The correct option is B $1$ hr $30$ mins

Let $x$ be the total time spent by Mini.

Doing homework and jogging constitute MIni's $50\%$ of time.

Dong homework = $35\%$

$\therefore Jogging=50-35=15\%$

Watching TV programmes = $x\times \frac{25}{100}=0.25x$

$0.25x=2hrs30mins=2\times 60+30=150mins$

$\Rightarrow x=\frac{150}{0.25}=600mins$.

So, time spent on jogging = $x\times \frac{15}{100}=600\times 15100=15\times 6=90mins=1hr30mins$. $\left[B\right]$