In zoo some lions and some parrots, supervisor counted 15 heads and 50 legs. Finds lions?

/ Uncategorized / By

The zoo had some lions and some parrots. the supervisor counted 15 heads and 50 legs. How many lions are there? These types of question often ask in FPSC KPPSC SPSC BPSC CSS and different government jobs test or paper.

The zoo had some lions and some parrots. the supervisor counted 15 heads and 50 legs. How many lions are there?

Here, I share with you a trick to solve these types of questions within seconds.

Solution:

According to this question information has given about parrots and lions. It means two things. These types of question where two variables given solve with the help of Simultaneous equation methods.

Methods of solving Simultaneous Equation

  • Elimination Method
  • Substitution Method
  • Graphing Method

Here I am solving by Substitution method.

Let:

    • The number of lion = X
    • The number of parrot = Y

x + y = 15         ……………………………(i)

4x + 2y = 50   ……………………………(ii)

Find the value of x form equation (i) and put the x value in equation (ii)

x = 15 – y

4(15 – y) + 2y = 50

60 – 4y + 2y = 50

-2y = 50 – 60

-2y = -10

y = -10/-2

y = 5

Now, y = 5 put in equation (i)

x + 5 = 15

x = 15 – 5

x = 10

      • The number of lion = X = 10
      • The number of parrot = Y = 5

Note:-

  • You can subscribe us at social pages for latest updates. Like our Facebook .
  • You can also subscribe our YouTube Channel.
  • To subscribe for Email (Informationpk.com@gmail.com) updates from Subscribe Email Updates option in sidebar.
  • You can study / view these notes free of cost from our website.  However, if you want to take printouts, you can buy these notes in digital/pdf format from our Online Shop or WhatsApp me at +92 315-3130411. We are sorry for this, but this amount is used to pay to the Typists, Data Entry Operators, Composers as well as to pay the Domain & Hosting Fees for our Website .
Scroll to Top