The total cost of chocolates purchased by Sabu is ₹68.25. If the cost of one chocolate is ₹3.25, Then how many chocolates did Sabu purchase?

The total cost of chocolates purchased by Sabu is ₹68.25. If the cost of one chocolate is ₹3.25, Then how many chocolates did Sabu purchase?

Sabu purchased 21 chocolates.

Explanation

To find out how many chocolates Sabu purchased, you can divide the total cost by the cost per chocolate:

Total cost of chocolates = ₹68.25 Cost of one chocolate = ₹3.25

Number of chocolates = Total cost / Cost per chocolate

Number of chocolates = ₹68.25 / ₹3.25

Number of chocolates = 21

So, Sabu purchased 21 chocolates.

Division of Decimals by Another Decimal

Dividing decimals by another decimal might seem tricky at first, but it's actually quite straightforward! Here's how you can do it:

1. Convert the divisor to a whole number:

• Look at the decimal places in the divisor (the number you're dividing by).
• Count the number of decimal places.
• Shift the decimal point in the divisor that same number of places to the right.
• Add zeroes to the right of the decimal point if necessary to maintain the same number of digits as before.

2. Shift the decimal point in the dividend (the number you're dividing) by the same number of places to the right.

This essentially multiplies both the dividend and the divisor by the same power of 10, making the division equivalent to dividing two whole numbers.

3. Perform long division as usual.

Treat the new whole numbers from steps 1 and 2 as your dividend and divisor, and divide as you would with any two whole numbers using long division.

4. Place the decimal point in the quotient (the answer) directly above the decimal point in the original dividend.

This accounts for the shifting you did in step 2.

Here's an example:

Let's say you want to divide 2.5 by 0.25.

1. Shift the decimal point in the divisor (0.25) one place to the right: 0.25 becomes 2.5.
2. Shift the decimal point in the dividend (2.5) one place to the right: 2.5 becomes 25.
3. Divide 25 by 2.5 using long division: 25 ÷ 2.5 = 10
4. Place the decimal point in the quotient (10) directly above the decimal point in the original dividend (2.5): The answer is 10.

Remember, whatever you do to the divisor, you must do the same thing to the dividend to keep the division equivalent.