Question

if i replace one of the digits of 2378 by 8 the number increases by 500. which digit is it​

Answer 1

Answer:

3rd digit

Step-by-step explanation:

2878 then it increases by 500

Answer 2

Given,

Main number is = 2378

One of the digits is replaced by 8 and that's why the number increases by 500

To find,

Which digit was replaced by 8?

Solution,

We can simply solve this mathematical problem by using the following mathematical process.

Here,

We have to calculate the increased number by adding the amount of increase (ie. 500) with the initial number (ie. 2378). Then we can inspect the final increased number to find out the position of the newly arrived digit 8.

Increased number = 2378 + 500 = 2878

For initial number :

» 2378

Thousands place = 2

Hundreds place = 3

Tens place = 7

Ones place = 8

For final number :

» 2878

Thousands place = 2

Hundreds place = 8

Tens place = 7

Ones place = 8

Final number has 8 at it's ones place, which is same as the 8 at the ones place of the initial number. So, this cannot be regarded as a replacement of digit.

But, the initial number had 3 at it's hundreds place and final number has 8 at it's hundreds place.

So, 3 is replaced by 8

Hence, the digit at hundreds place is replaced by 8 , or 3 is replaced by 8