4th Class
Mathematics
Unitary Method
Question Bank
Self Test-7
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.