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Question

Charu paid ₹34 for a eraser. Express the amount he paid in decimal form.

A
0.25
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B
0.75
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C
0.7
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D
0.65
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Solution

The correct option is B ₹0.75Let's convert ₹34 to a decimal. 34 represents 3÷4. Step 1: In the given fraction 34, take the numerator digit 3 as a dividend and the denominator digit 4 as the divisor. Step 2: Here, denominator > numerator. We have to make the dividend digit (3) greater than the divisor digit (4) by placing 0 next to the 3 and to the quotient respectively. Now we have 30 as a new dividend. (30>4). Step 3: In the quotient part, it is important to insert decimal (.) after 0 and start the division. Step 4: Multiply 4 with a number so that the product is less than or equal to 30. 4×7–=28. Now, the quotient is 7 and the remainder left is 2. After introducing a decimal point in the quotient we can introduce one 0 at each step of division. Step 5: Now, the new dividend is 20. Multiply 4 with a number so that the product is less than equal to 20. 4×5=20. Here now the quotient is 5 and the leftover remainder is 0. ∴34 can be written as 0.75. So, Charu paid ₹0.75 for the eraser.

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