Question

fqjDavid was thinking of a number. David adds 7, then divides by 8 to get an answer of 4. What was the original number?

Answer 1

The number is 25.

Given:

David adds 7 to a number and then divides it by 8 to get an answer of 4.

To Find:

The original number.

Solution:

To find the number we will follow the following steps:

Let the number be X.

On adding 7 n number X result will be X + 7

Now,

Dividing the X + 7 by 8 David gets 4.

So,

(X + 7 )/8 = 4

X + 7 = 8 × 4

X + 7 = 32

X = 32 - 7

X = 25

Henceforth, The number is 25.