The correct option is
C A = B
For Rocket A:
Total length of Rocket A
=3430 cm.
Total number of parts in Rocket A
=70
So, the length of each part of Rocket A will be
=3430 cm÷70
The number
3430 in its exapnded form can be written as:
3430=3000+400+30
Here, Divisor =
3430
and Dividend =
70.
So, calculating
=3430÷70 using the box method,
![](https://df0b18phdhzpx.cloudfront.net/ckeditor_assets/pictures/1123887/original_123.png)
Adding all the partial quotients, you get the final quotient as:
40+5+4=49.
So,
3430 cm÷70=49 cm.
Therefore, each part of Rocket A will be
49 cm long.
For Rocket B:
Total length is
1715 cm.
Total number of parts in it is
35.
So, the length of each part of Rocket B will be
=1715 cm÷35.
So, here, Dividend =
1715
and Divisor =
35.
The number
1715 in its expanded form can be written as:
1715=1000+700+10+5.
So, calculating
1715÷35 using the box method, you get the following:
![](https://df0b18phdhzpx.cloudfront.net/ckeditor_assets/pictures/1390507/original_Screenshot_2021-10-18_at_1.00.44_PM.png)
Adding the partial quotients, you get the final quotient as:
20+20+5+4=49.
So, the length of each part of Rocket B is also
49 cm.
Hence, comparing the lengths of the parts of both the rockets, you get,
A=B.