Question

WORD PROBLEMS
1. A tailor has a reel of thread having 30= m of thread. He uses 23–m of thread to
stitch some clothes. What is the length of the thread left in the reel?​

Answer 1

Answer:

The length of the thread left in the reel is $\boxed{\bf 7\text{\bf \ meter}}$.

Step-by-step explanation:

The given problem is based on the concept of subtraction.

In the question it is given that the length of the reel is $30\text{ meter}$.

Consider that the original length of the reel is expressed as shown below:

$\boxed{\text{L}=30}$                                        .....(1)

The length of teh reel used by the tailor is $23\text{ meter}$.

Consider that the new length of the reel is expressed as shown below:

$\boxed{\text{B}=23}$                                        .....(2)

In order to obtain the length of the reel left with the tailor, subtract equation (2) from equation (1) as shown below:

$\begin{aligned}\text{L}-\text{B}&=30-23\\&=7\end{aligned}$

Therefore, the length of the thread left in the reel is $\boxed{\bf 7\text{\bf \ meter}}$.