Question

fifteen workers take 8 hour to build a wall how many hours will 10 workers need to build the same wall​

Answer 1

Answer:

12 hours

Step-by-step explanation:

Formula : X1 Y1 =X2 Y2

X1 = 15,Y1 = 8hrs,X2 = 10,Y2 =?

15×8 = 10×Y2

120 = 10×Y2

120 = Y2

10

Y2 = 12hrs