সব প্রশ্নে ফিরে যান
Math
X, Y and Z can do a piece of work in 6 hours. X and Y can do the same work in 8 hours and Z can the same work in 12 hours . In how many times will X and Z do the same work?
A) 6 hours
B) 8 hours
সঠিক উত্তর
C) 10 hours
D) 12 hours