Question

Rob has 12 pencils. He divides them such that there are 4 pencils in each packet. How many packets does Rob require to pack all the pencils?

• A. 2
• B. 3
• C. 5
• D. 4

Answer 1

The correct option is B 3

We can solve the problem by repeated subtraction.
Out of the 12 pencils, Rob filled the first packet with 4 pencils.
The remaining pencils $=12-4=8$

Now, Rob filled the second packet by taking 4 pencils.
The remaining pencils $=8-4=4$

Finally, Rob filled the remaining 4 pencils in the third packet.
Now, the remaining pencils $=4-4=0$

Therefore, Rob requires 3 packets to pack 12 pencils.