In a row of boys, if A who is tenth from the left and B who is ninth from the right interchange their positions, A becomes fifteenth from the left, How many boys are there in the row?

Created: 7 years ago | Updated: 1 month ago
Updated: 1 month ago

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৪৮ বর্গ সেমি
৩৬ বর্গ সেমি
৪৯ বর্গ সেমি
৭২ বর্গ সেমি
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