Arithmetic Ability
Area

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Q.

The base of a triangular field is three times its altitude. If the cost of cultivating the field at Rs. 24.68 per hectare be Rs. 333.18, find its base and height.

View Answer

Correct choice: A

Explanation:

Area of the field = Total cost/rate = (333.18/25.6) = 13.5 hectares 13.5*10000m2=135000m2 Let altitude = x metres and base = 3x metres. Then, 12*3x*x=135000⇒x2=90000⇒x=300 Base = 900 m and Altitude = 300 m.
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