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The ratio of two numbers is 4:5 and their sum is 180. Find the numbers.

A70 and 90

B80 and 90

C80 and 100

D90 and 100

Answer:

C. 80 and 100

Read Explanation:

Let the two numbers be 4x and 5x.

Their sum is:

4x + 5x = 180
9x = 180
x=1809=20x = \frac{180}{9} = 20

Now find the numbers:

  • First number = (4×20=80)(4 \times 20 = 80)

  • Second number = (5×20=100)(5 \times 20 = 100)

Answer: (80 and 100)(\boxed{80 \text{ and } 100})


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