A field is in the form of a circle. A fence is to be erected around the field. The cost fencing would be Rs. 2640 at the rate of Rs 12 per meter. The, the field is to be throughly ploughed at the cost of Rs 0.05 per m2. What is the amount required to plough the field?[ take π=22/7]

Matching exercise

    
Match the items on the right to the items on the left.
Step 1
Step 2
Step 3
Step 4
Step 5
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screenshot13.12_16_1.png
screenshot13.12_16_5.png
screenshot13.12_16_2.png
screenshot13.12_16_3.png