Evelyn wants to pour 2 3/4 cups of water into a pot. She only has 1/2 cup measuring cup. How many times must she fill the 1/2 cu
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Answer:
Original number is 47
Step-by-step explanation:
Given: The tens digit is three less than the units digit. If the digits are reversed, the sum of the reversed number and the original number is 121.
To find: the original number
Solution:
Let x denotes digit at ones place.
As the tens digit is three less than the units digit,
Digit at tens place =
Original number =
When digits are reversed,
Reversed number =
As the sum of the reversed number and the original number is 121,
So,
original number =