Algebra

Deevita Agarwal's Avatar
Blazing goIITian

Joined: 6 Dec 2009
Post: 304
9 Jan 2010 15:07:56 IST
0 People liked this
10
1135 View Post
Geeta is celebrating her birthday tomorrow. Next year, she will reach an age three times that of dau
Engineering Entrance , JEE Main , JEE Main & Advanced , Mathematics , Algebra

Geeta is celebrating her birthday tomorrow. Next year, she will reach an age three times that of daughter Sunita 11 years ago. Last year at this time, Sunita was exactly half of her age. How old is Geeta today?



Comments (10)

neeraj joshi's Avatar

Blazing goIITian

Joined: 6 Jun 2009
Posts: 366
9 Jan 2010 15:22:52 IST
0 people liked this

is the answer 70 yrs

-
Cool goIITian

Joined: 14 Aug 2009
Posts: 50
9 Jan 2010 15:37:36 IST
1 people liked this

64 yrs..geeta (today), 65 yrs (tomorrow)

33 yrs...sunita


Blazing goIITian

Joined: 7 May 2007
Posts: 1724
9 Jan 2010 15:50:32 IST
1 people liked this

let the age of geeta when she celebrates her birthday tommorow be x

and sunita be y.

so, accd. to the ques.,

x = 3(y-11).

x-3y = -33.

x - 2 = 2 (y-2)

x - 2y = -2

x -3y = -33

so, y = 31.

x = 3 (20) = 60.

present age = x-1 = 59.

answer is 59 yrs.


Blazing goIITian

Joined: 7 Dec 2007
Posts: 307
9 Jan 2010 19:56:12 IST
0 people liked this

geeta's 59, sunita's 30 :D

Blazing goIITian

Joined: 19 Jul 2009
Posts: 359
9 Jan 2010 21:41:48 IST
0 people liked this

geeta is 62 yrs old nd sunita is 32 yrs old

Blazing goIITian

Joined: 7 Dec 2007
Posts: 307
9 Jan 2010 21:57:56 IST
0 people liked this

o.O how?

if geeta's 62, then next year she wud be 63 and sunita - 33.

according to the question, next yr, geeta wud be 3 times sunita's age 11 years bak.

63 is not equal to 3*(33-11)

shashank agarwal's Avatar

Blazing goIITian

Joined: 25 Jul 2009
Posts: 615
10 Jan 2010 16:30:25 IST
0 people liked this

kapil cvs nei sahi kiya hai ,, geeta's 59, sunita's 30 Itne young age se deevita u came on educational site ?? waise whats u r ambition >>>
Kshitij Karandikar's Avatar

Hot goIITian

Joined: 29 Mar 2009
Posts: 146
11 Jan 2010 01:09:19 IST
0 people liked this

Her current age is 73.. And tommorow she'll be 74
shashank agarwal's Avatar

Blazing goIITian

Joined: 25 Jul 2009
Posts: 615
11 Jan 2010 14:38:03 IST
1 people liked this

age of sunita is 34 yrs and that of geeta is 67 years ,see we will form 2 equations ,itz a bit tricky first add 1 year to both their ages , then just making equation using above relation in x and y ,solve the 2 variable equations and get the answer , ih poe it is correct
Deevita Agarwal's Avatar

Blazing goIITian

Joined: 6 Dec 2009
Posts: 304
14 Jan 2010 21:26:04 IST
0 people liked this

Let Geeta's age today be x.

Let daughter sunita age today be y.

Daughter Sunita 11 years ago was y-11.

x+1 = 3(y-11)

x-1 = 2(y-1)

If we solve these two equations we get x = 65 years and y = 33 years.

So today geeta's age is one day less than 65 years.




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 - 10050 m
Post - 2205
4. edison
Altitude - 10815 m
Post - 7802
5. Sagar Saxena
Altitude - 8625 m
Post - 8064
6. Yagyadutt Mishr..
Altitude - 6330 m
Post - 1979

Find Posts by Topics

Physics

Topics

Mathematics

Chemistry

Biology

Parents Corner

Board

Fun Zone