एक आयत की लंबाई और चौड़ाई क्रमशः 20% और ...

एक आयत की लंबाई और चौड़ाई क्रमशः 20% और 10% बढ़ा दी जाती है । आयत के क्षेत्रफल में कितने प्रतिशत वृद्धि होती है ?

A

`32%`

B

`30%`

C

`25%`

D

`15%`

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