5 boys can do as much work as 3 men. The wages of 3 boys are equal to those of 2 men. A piece of work for which 40 boys and 15 men are employed takes 8 weeks and costs Rs 15288.If 18 women are included in the task then find the cost if 2 women can do as much work as 1 man and wages of 6 women is equal to wages of 5 men.