The answer to the second question and the third question on page 74 of the first volume of the fifth grade mathematics book
Let sika deer be x meters high and giraffe be (x+3.65) meters high.
3.5x-x=3.65
(3.5- 1)x=3.65
2.5x÷2.5=3.65÷2.5
x= 1.46
1.46+3.65=5. 1 1
A: The height of sika deer is 1.46m, and that of giraffe is 5.11m..