Question

A fish is $15cm$ long. Its head is as long as its tail. When the measurement of its middle is divided by $2$, then answer is $4.5cm$. How long is its each part, i.e. head, tail and middle body.

Answer 1

Let the length of head$=$That of tail$=x$cm

and Length of body$=y$cm

$\frac{y}{2}=4.5$cm $\Rightarrow y=9$cm

Now, $x+x+9=15$

$2x=15-9=62x=6$

$\Rightarrow x=3$cm

Head$=$tail$=3$cm

Body$=9$cm