Question

4 indians and 4 Chinese can do a piece work in 3 days while 2 indians and 5 Chinese can finish it in 4 days how long would it take for 1 indian to do it ? How long would it take for 1 Chinese to do it

Answer 1

Answer:

chinese will complete work in 36 Days

Indian will complete work in 18 days

Step-by-step explanation:

Let say Indian 1 day work  = I

& Chinese one day work = C

4 indians and 4 Chinese can do a piece work in 3 days

=> Work done =  3 *  ( 4I + 4C) = 12I + 12C

2 indians and 5 Chinese can finish it in 4 days

=> Work Done = 4 * (2I + 5C) = 8I + 20C

12I + 12C = 8I + 20C

=> 4I = 8C

=> I = 2C

Work done = 12(2C) + 12C = 36C

chinese will complete work in 36 Days

36C = 18 * (2C) = 18I

Indian will complete work in 18 days