Question

Glenn puts three books with a total weight of 10kg, into his backpack. Later he took two of the books out and put them into his locker. The two books weighed 5kg in total. What is the current weight of Glenn's backpack

Answer 1

Answer:

5 kg

Step-by-step explanation:

10kg-5kg= 5kg

Answer 2

Given : Glen put three books, with the total weight of 10kg, into his backpack.

Later, he took two of his books out and put them into his locker.

The two books weighed 5 kg in total.

To Find : What is the integer sum that represents the current weight of Glenn's backpack

Solution:

Weight of 3 Books  = 10 kg

Weight of 2 Books = 5  kg

Current weight of Glenn's backpack = Weight of 3 Books - Weight of 2 Books

=> Current weight of Glenn's backpack = 10 - 5   kg

=>  Current weight of Glenn's backpack = 5  kg

10 + (-5)  = 5

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