The sum of three numbers is 98. The first number is 2/3 of the second, and the second is 5/8 of the third. What is the second number?
Hello, Amy!
The sum of three numbers is 98.
The first number is 2/3 of the second, and the second is 5/8 of the third.
What is the second number?
Let the three numbers be:
"Their sum is 98": . .[1]
"The first is 2/3 of the second": . .[2]
"The second is 5/8 of the third": . .[3]
Substitute [2] and [3] into [1]: .
Multiply by 15: .
. . Therefore: .