Question

Only 7th .......with full method ....pls give answer

Answer 1

Let Altitude be y Base be 3y Therefore area of triangle=1/2×3y×y                                             =3y^2/2 Cost of cultivating the field at Rs 246 per hectare=246×3y^2/2                    =369y^2 Therefore 369y^2=332y^2                    Solve you get value of y