Question

It takes 10 days for digging a trench of 100 m long, 50 m broad and 10 m deep. what length of trench,25 m broad and 15 m deep can be dug in 30 days ?

Answer 1

I dint understant the question

Answer 2

Answer:

400

Step-by-step explanation:

Expl : More days, more length (Direct)

      Less breadth, more length (Indirect)

      More depth, less length (Indirect

      Days      10 : 30;

      Breadth  25 : 50;                  : : 100 : x

      Depth    15 : 10;              

      :. 10 * 25* 15 * x = 30 *50 * 10 *100

            x= (30*50*10*100)/10*25*15 = 400

     So the required length = 400m