When a number is divided by 20 gives a remainder of 7, then number that can be added to the number to change it to a multiple of 5 is Option (3) 3
What is Division?
Division is one of the four basic operations of arithmetic, the ways that numbers are combined to make new numbers.
What is Remainder?
The remainder is the amount "left over" after performing some computation
Given,
A number is divided by 20 and the remainder is 7
We have to find the number which can be added to the number to change it to a multiple of 5
20 is a multiple of 5.
We just have to make the remainder 7 a multiple of 5
So we have to add 3 to 7 to make it multiple of 5. Then the number will become multiple of 5
Hence, When a number is divided by 20 gives a remainder of 7, then the number that can be added to the number to change it to a multiple of 5 is Option (3) 3
Learn more about Division and Remainder here
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