Question

The base of a triangular field is 2.4 times its height. If the cost of levelling the field at the rate of ₹20 per square meter is ₹9600, then the height of the field is ___ m.

• A. 20
• B. 30
• C. 48
• D. 50

Answer 1

The correct option is A

20

Let the height of the field be 'h'

base 2.4 h

$\frac{1}{2}\times 2.4h\times h\times 20=9600$

$h^2=400$

$h=20cm$