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## Explanation

- If a number, when divided by 4.

- Is reduced by 21.

The number can be figure out in this way.

Let suppose the number is y.

When “y” will be divided by 4 then

y/4 = y – 21 ________ (i)

Value of y can be find out easily from equation (i) by just simplifying it (y = 28).

## To Find

Number = ?

## Solution

Let suppose

Number = y

According to the given condition

y/4 = y – 21

y = 4(y – 21)

y = 4y – 84

84 = 4y – y

84 = 3y

y = 84/3

y = 28

**Required Number = 28 answer**

## Conclusion

If a number when divided by 4 is reduced by 21. The number will be 28.