In a zoo, there are deers and ducks. If the heads are counted, there are 180, while the legs are 448. What will be the number of deers in the zoo?
A. 136
B. 68
C. 44
D. 22
Answer: Option C
Solution(By Examveda Team)
Average legs per head = $$\frac{{448}}{{180}}$$
Deers : Ducks = 88 : 272 Hence, the number of Deers = $$\frac{{180 \times 88}}{{360}}$$ = 44
This Question Belongs to Arithmetic Ability >> Alligation
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Related Questions on Alligation
A. $$\frac{{1}}{{2}}$$ kg
B. $$\frac{{1}}{{8}}$$ kg
C. $$\frac{{3}}{{14}}$$ kg
D. $$\frac{{7}}{{9}}$$ kg
A. 81 litres
B. 71 litres
C. 56 litres
D. 50 litres
448÷2=224
224-180=44.
How to get 88/180 and 272/180
Here, L=448 and H=180
So,Number of Deers = (L-2H)/2
=(448-360)/2=44
Answer is 44
Let Duck= x & Deer = (180-x)
Now,
2x+ 4(180-x)= 448
2x+720-4x=448
x=136
Thus, the number of Deer is (180-136) = 44 Ans.
why we should divide by 360
how to get 88/180 & 272/180