Question

An athlete wants to improve his stamina ,so he decides to increase the distance he runs by half a kilometere every day.If he starts with 5 km,find how much he runs on 10th day​

Answer 1

$\bf\Large{Solution :}$

First day = 5 km

10th day = 0.5×(10-1)+5

= 0.5×9+5

= 4.5+5

= 9.5 km

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We took 10-1=9 as the first day was already complete.

So, adding 0.5×9 with 5 gives us 9.5 km.

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