Quote:
Originally Posted by Greenboat
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
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here is the easier way of solution
# of feet
2*50=100
4*45 = 180
4*8 = 32
which is 100+180+32= 312 feet
# of head
50+45+8 = 103
difference between feet and head = 312-103 = 209
they said 224 more hon so if we had 15 keepers then head becomes 103+15= 118 and feet become 312+30= 352
352-118 = 224