# QA – Placement Quizzes | Algebra | Question 13

A zoo has some peacocks and some horses. If the number of heads be 48 and the number of feet be 140, then the number of peacocks will be:**(A)** 23**(B)** 25**(C)** 26**(D)** 27**Answer:** **(C)****Explanation:** Let there be x peacocks and y horses. Then,

x + y = 48 (equation 1)

and 2x + 4y = 140

x + 2y = 70

Substituting the value of x from equation 1, we get

48 -y + 2y = 70

y = 22

Then, x = 48 – 22 = 26.

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