Question

2. How many tens should be added to the result after subtracting 10 units
from 42 tens for getting the sum five hundred ?
​

Answer 1

Answer:

9 tens should be added to the result after subtracting 10 units from 42 tens for getting the sum five hundred.

Step-by-step explanation:

Given : The result after subtracting 10 units from 42 tens for getting the sum five hundred.

To find : How many tens should be added to the result?

Solution :

Let the tens be x,

According to question,

x\times10+42\times10-10=500x×10+42×10−10=500

10x+420-10=50010x+420−10=500

10x+410=50010x+410=500

10x=9010x=90

x=9x=9

Therefore, 9 tens should be added to the result after subtracting 10 units from 42 tens for getting the sum five hundred.

$thank \: you$