Question

12 percent of a sum of money is rupees 42 .what is the 20 percent of the same sum​

Answer 1

70 rupees

Explanation:

First set up an equation to find out what the "sum of money" is. We know that 12% of it is 42, so the equation looks like this:

0.12x = 42

Remember that with percents you always convert them into a decimal by dividing by 100. (Per century, or per one hundred, something like that.)

Next, solve for x by dividing both sides by 0.12:

x = 42/0.12 = 350

Now that we know what the "sum of money" is, we can take 20% of it:

0.20(350) = 70 rupees