Algebra

sebin's Avatar
Hot goIITian

Joined: 6 Sep 2008
Post: 174
10 Oct 2008 17:04:15 IST
0 People liked this
1
558 View Post
inequality
Engineering Entrance , JEE Main , JEE Main & Advanced , Mathematics , Algebra

a total of 100 sweets has to be distributed among men women and children.

each man gets 10 sweet each women 5 sweets and each children gets 1/2 sweet

then how many men women and children were present ,if their total no is also 100.



Comments (1)

Sagar Saxena's Avatar

Blazing goIITian

Joined: 8 Oct 2008
Posts: 8064
12 Oct 2008 15:28:58 IST
0 people liked this

Let the number of man be x.


woman be y


child be z


It is given in the question total no of man, woman, child are 100. So x+y+z=100


Given: man get 10 sweets, woman 5  and child 1/2.


10x+5y+z/2=100


eliminating z from eqn 1 and 2, we get


19x+9y=100


x and y must be integers, find the value of x and y by trial and error method, we get x=1 and y=9 therfore z=90.




Quick Reply


Reply

Some HTML allowed.
Keep your comments above the belt or risk having them deleted.
Signup for a avatar to have your pictures show up by your comment
If Members see a thread that violates the Posting Rules, bring it to the attention of the Moderator Team
Free Sign Up!
Sponsored Ads

Preparing for JEE?

Kickstart your preparation with new improved study material - Books & Online Test Series for JEE 2014/ 2015


@ INR 5,443/-

For Quick Info

Name

Mobile

E-mail

City

Class

Vertical Limit

Top Contributors
All Time This Month Last Week
1. Bipin Dubey
Altitude - 16545 m
Post - 7958
2. Himanshu
Altitude - 10925 m
Post - 3836
3. Hari Shankar
Altitude - 10085 m
Post - 2217
4. edison
Altitude - 10825 m
Post - 7804
5. Sagar Saxena
Altitude - 8635 m
Post - 8064
6. Yagyadutt Mishr..
Altitude - 6330 m
Post - 1958

Find Posts by Topics

Physics

Topics

Mathematics

Chemistry

Biology

Parents Corner

Board

Fun Zone