3. In a caravan, in addition to 50 hens, there are 45 goats and 8 camels with some keepers. If the total number of feet be 224 more than the number of heads in the caravan, the number of keepers is?

Hens=50
Goats=45
Camels=8
Some keepers=x,,......(it means 2x in equation, because a man has two feet)


# of tests=2*50+45*4+8*4+2x+312 ( yaha end me 312 kaha we arahe hen, ye samj nahi arahi, baki problem easy he?

# of heads=50+45+4=103+x.
Total number of heads = 50+45+8+x = 103 + x
Now, (2x+312) = (103+x)+224
=> x = 15