Question

Ranjini had 1/2 m of ribbon and Naina had 1/2 m of ribbon. The total lenght of ribbon is
Options are:
a) 2m
b) 1m
c) 4m
d) 1/4m


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Answer 1

Answer:

b) 1m

Step-by-step explanation:

Total length of the ribbon=1/2m+1/2m =1m

option b) =1m

Answer 2

• Option (b) 1m is correct.

Given :–

• Ranjini had $\sf \dfrac{1}{2} \: m$ of ribbon.
• Naina had $\sf \dfrac{1}{2} \: m$ of ribbon.

To Find :–

• The total length of ribbon.

Solution :–

We have to find the total length of the ribbon.

So,

Total length of the ribbon = Ranjini's ribbon + Naina's ribbon

We have,

• Ranjini ribbon = $\sf \dfrac{1}{2} \: m$
• Naina ribbon = $\sf \dfrac{1}{2} \: m$

Now,

$\implies \dfrac{1}{2} \: m + \dfrac{1}{2} \: m$

$\implies \dfrac{1}{2} + \dfrac{1}{2} \: m$

Now, we taking the least common multiple (L.C.M.) of the denominators.

L.C.M. of 2 and 2 = 2.

So,

$\implies \dfrac{1 \times 1 + 1 \times 1}{2} \: m$

$\implies \dfrac{1 + 1}{2} \: m$

$\implies \cancel \dfrac{2}{2} \: m$

$\implies \dfrac{1}{1} \: m$

$\implies 1 \: m$

Hence,

The total length of the ribbon is 1m.

So, the correct option is (b) 1m.