A worker can load a box onto a truck in 9 minutes and 8 boxes fill a truck. How many trucks can be filled by 18 men working for 1 ｽ hrs?

a)21 b)23 c)22.5

• 1 man can load a box onto a truck in 9 minutes
  1 man can load __boxes onto a truck in 1hour(60 minutes) is 60/9=6.6667 boxes
  then 18men working for 60minutes loads 6.6667*18 boxes i.e,120 boxes
  here each truck can accomodate 8 boxes so 120boxes can accomodated in 120/8 trucks i.e, 15......
  answer is 15trucks which is not there so,none
• 10 years agoHelpfull: Yes(2) No(1)
• (c) 22.5 is answer
  1 men loads a box in 9 mins. Boxes loaded in 1 hour = 60/9 = 6.67
  18 men working for 1 ｽ i.e. 1 +1/2 hr = 18*(3/2) hours = 27 hours
  Boxes loaded in 27 hours = 27 * 6.67 = 180
  Trucks filled = 180/8 = 22.5
• 8 years agoHelpfull: Yes(2) No(0)