question_answer

Jennifer makes 30 equilateral triangles of equal perimeter. She colors 24 triangles with red and remaining triangles with blue. Colouring 2 triangles with blue cost as much as colouring 3 triangles with red. If colouring 1 triangle with red costs Rs. 10, find the cost of colouring all triangles.

A) Rs. 360

B) Rs. 350

C) Rs. 340

D) Rs. 330

E)  None of these