Question

9. Roma gave a wooden board of length 150 cm to a carpenter for making a shelf. The carpenter
sawed off a piece of 40 cm from it. What is the length of the remaining piece?​

Answer 1

Answer:

110 we only have to subtract

Step-by-step explanation:

is

the

answer

Answer 2

Correct Question:-

Roma gave a wooden board of length $\sf{150 \frac {1}{4}}$cm to a carpenter for making a shelf.The carpenter sawed off a piece of $\sf{40 \frac {1}{5}}$cm from it.What is the length of the remaining piece ?

Required Answer

The length of the remaining piece is $\sf{110 \frac{1}{20}}$

Given:-

• Roma gave a wooden board of length $\sf{150 \frac {1}{4}}$cm to a carpenter for making a shelf.
• The carpenter sawed off a piece of $\sf{ 40\frac {1}{5}}$cm from it.

To Find:-

What is the length of the remaining piece ?

Solution:-

Total Length of the wooden board = $\sf{150 \frac {1}{4}}$cm

Length sawed off by the carpenter = $\sf{ 40\frac {1}{5}}$cm

The length of the remaining piece = $\sf{ 150\frac {1}{4}}$cm - $\sf{ 40\frac {1}{5}}$cm

Changing into improper fraction : $\sf{150 \frac {1}{4}}$cm = $\sf{ \frac{601}{4}}$;$\sf{ 40\frac {1}{5}}$cm =$\sf{ \frac{201}{5}}$

L.C.M of 4 and 5 is 20.

$\sf{ \frac{601 \times 5}{4 \times 5} = \frac{3005}{20} : \frac{201 \times 4}{5 \times 4} = \frac{804}{20}}$

$\sf{ \frac{3005}{20} - \frac{804}{20}} = \frac{2201}{20} = 110 \frac{1}{20}$

The length of the remaining piece is $\sf{110 \frac{1}{20}}$

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