The average cost of 1 dozen bananas is ₹29. [[1]] is the estimated amount of bananas to the nearest tens.

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answer is 30.

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Detailed Solution

The average cost of 1 dozen bananas is ₹29.

The given number is 29.

To round off a number to the nearest tens, we have to check the digit at ones place.

If the ones digit is less than 5 then the ones digit becomes zero and the tens digit remains the same.
If the ones digit is more than or equal to 5 then the ones digit becomes zero and the tens digit increase by 1.

Tens	Ones
2	9

In 29, the digit at ones place is 9 which is more than 5,

So, we replace the ones digit with 0 and the tens digit increase by 1.

So, ₹29 will be rounded off to ₹30.

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