The length of the board is 5 meters, three pieces were cut from it. The length of the first 1 is 3 \ 20 meters, the second

| December 29, 2020 | education

The length of the board is 5 meters, three pieces were cut from it. The length of the first 1 is 3 \ 20 meters, the second piece is 8 \ 20 meters longer, and the third is 1 whole 7 \ 10 shorter than the first and the second together. How long is the third piece? What is the remainder length?

Determine how many meters the length of the second part of the board is equal to:
23/20 + 8/20 = 31/20.
Let’s determine what the total number of meters is equal to the lengths of the first and second parts of the board:
23/20 + 31/20 = 54/20 = 27/10.
Determine how many meters the length of the third part of the board is equal to:
27/10 – 17/10 = 1.
Determine how many meters the length of the remainder of the board is equal to:
5 – 1 – 2.7 = 1.3.
Answer: The length of the third part of the board is 1 meter, and the length of the remaining part of the board is 1.3 meters.



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