57.
If 12 carpenters, working.6 hours a day can make 460 chairs in 24 days,how many
chairs will 18 carpen’ters make in 36 days, each working 8hours a day ?. [Hotel
Mgt 1992]
A.1260 B.920
C.1320 D.1380
Answer: 1380
Explanation: (Carpenters 12: 18) : (His/Day 6:8 ) :
(Days 24 : 36) : : 460 : x
12
* 6 * 24*x =18 * 8 * 36 * 460 or x = 1380