# Ex.2.3 Q5 fractions-and-decimals Solutions-Ncert Maths Class 7

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## Question

Saili plants $$4$$ saplings, in a row, in her garden. The distance between two adjacent saplings is \begin{align} \frac{3}{4}\rm\, m\end{align}. Find the distance between the first and the last sapling.

## Text Solution

What is known?

Number of saplings and distance between two adjacent saplings.

What is unknown?

Distance between the first and the last sapling.

Reasoning:

Add the distance of first to second, second to third and third to fourth. Since all the sapling are plant equidistance to each other then we can simply multiply \begin{align}\frac{3}{4}\end{align}by $$3$$.

Steps:

Total number of saplings $$\rm= 4$$

Distance between two adjacent saplings\begin{align} = \frac{3}{4}{\rm{m}}\end{align}

Distance between the first and the last sapling\begin{align}= 3 \times \frac{3}{4} = \frac{9}{4}{\rm{m}} = 2\frac{1}{4}{\rm{m}}\end{align}

Thus, the distance between the first and last sapling is \begin{align} 2\frac{1}{4}{\rm{m}}\end{align}

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