Question

while measuring the length of science book ,the reading at one end is 3.56cm and and at the other end is 25 cm .What is the length of the science book
​

Answer 1

$\bf{\underline{\underline \green{AnswEr:-}}}$

Given

• Lengths of two ends we can get the length of the rod.

We have two ends as below :

Let the two marks on the ruler be A and B.

We have the readings on the mark be as follows :

• A = 3.5 cm
• B = 25 cm

The length of the rod is given by the difference between the two marks.

That is we have = A - B

We do the substitution and solve the question below :

Length of the rod = 25 - 3.5 = 21.5 cm

Hence:

• The length of the rod is 21.5 cm.

Answer 2

$\huge\underline\mathcal\pink{HOLA!!!}$

Given

Lengths of two ends we can get the length of the rod.

We have two ends as below :

Let the two marks on the ruler be A and B.

We have the readings on the mark be as follows :

A = 3.5 cm

B = 25 cm

The length of the rod is given by the difference between the two marks.

That is we have = A - B

We do the substitution and solve the question below :

Length of the rod = 25 - 3.5 = 21.5 cm

Hence:

The length of the rod is 21.5 cm.