A man has some hens and cows. If number of heads is 48 and number of feet is 140, then the number of hens will be?

ایک ادمی کے پاس کچھ مرغیاں اور گائے ہیں اگر سروں کی تعداد 48 ہے اور پیروں کی تعداد 140 ہے تو مرغیوں کی تعداد کتنی ہوگی

Answer: 26

Number of heads = 48

Number of feet = 140

Calculation:

Let the number of hens is x and the number of cows is y. Therefore,

x + y = 48 ----(1)

According to the question,

2x + 4y = 140

⇒ x + 2y = 70 ----(2)

Subtracting (1) from (2), we get

y = 22

Put this value in equation (1)

⇒ x = 48 - 22 = 26

No.of hens =26
No. of cows =22.

This question appeared in Past Papers (5 times)

PPSC 5 Years Past Papers Subject Wise (Solved with Details) (2 times)

PPSC Assistant Past Papers PDF (1 times)

PPSC Past Papers (1 times)

Punjab Prison Warder Past Papers & Syllabus (1 times)

This question appeared in Subjects (3 times)

MATHS MCQS (3 times)

Related MCQs