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Q.

Suppose you have a stretching machine that could stretch almost anything. For example, if you put a 5-meter stick into a (×4)   stretching machine (as shown below), you get a 20-meter stick. Now if you put a 10 cm carrot into a (×4)   machine, its length when it comes out will be[[1]]cm.


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Detailed Solution

Suppose you have a stretching machine that could stretch almost anything. For example, if you put a 5-meter stick into a (×4)   stretching machine (as shown below), you get a 20-meter stick. Now if you put a 10 cm carrot into a (×4)   machine, its length when it comes out will be 40 cm.
Question ImageIt is given a stretching machine and a 5-meter stick is put into a (×4)   stretching machine and got 20-meter stick and a 10 cm carrot is put into a (×4)   machine.
Adding a number with the other number a particular no. of times, in its simplest form is called multiplication and hence the numbers are the factors of the product so obtained.
According to the question If a 5 m stick is put into a (×4)   stretching machine, then the machine produces 20 m stick. In other words, we can write as, 5×4=20m  
Now to find the length of 10cm carrot according to the (×4)   machine means, 10×4=40cm  
Therefore, the length of a 10cm carrot is 40 cm stick.
Hence, the correct answer is 40.
 
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