Question

10 missions can build a wall working 7 hours a day in 12 days in how many days can work be completed by 14 persons working 8 hours a day​

Answer 1

Answer:

Step-by-step explanation:

let 14 massons complete work by working 7 hours in day in = x days

10 massons complete work in = 12*7=84 hours

14 massons complete work in = x * 8 =8x hours

This is case of inverse variation ,

So , 10 * 84 = 14 * 8x

840 = 112x

x = 7.5 days OR 7 and a half days