Total weight
Three pencils 150 units
One pencil 50 units
One pencil + one notepad 350 units
One notepad 300 units
One notepad + scissors 450 units
Scissors 150 units
We can also check the answer by adding the weights together.
One pencil weighs 50 units, so three pencils weigh:
50 + 50 + 50 = 150
The pencil and notepad together weigh:
50 + 300 = 350
Finally, the notepad and scissors together weigh:
300 + 150 = 450
Every result matches the numbers shown in the image.
This confirms that the scissors weigh 150 units.
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