BREAKING: Target Test Prep releases Brand New 2026 On Demand GMAT prep course

Redeem

Can anyone do this?

This topic has expert replies
Post new topic Post Reply
Previous Topic Next Topic
User avatar
Master | Next Rank: 500 Posts
Posts: 277
Joined: Sun Jun 17, 2007 2:51 pm
Location: New York, NY
Thanked: 6 times
Followed by:1 members

by givemeanid » Mon Sep 03, 2007 9:37 am
10X/100 - 8Y/100 = 56
5X - 4Y = 2800

X+Y = 2000 => X = 2000 - Y
5(2000 - Y) - 4Y = 2800
Y = 800
So It Goes
Top
Source: — Problem Solving |
Junior | Next Rank: 30 Posts
Posts: 24
Joined: Wed Aug 22, 2007 4:49 pm
Thanked: 3 times

Re: Can anyone do this?

by jaspreet.sharma » Mon Sep 03, 2007 11:20 pm
aditya33 wrote:If X dollar is invested @ 10 percent for one year nad Y dollars is invested at 8 percent for one year,the annual income from the 10 percent investment will exceed the annual income from the 8 percent investment by $56.If the dollar 2000 is the total amount invested,how much is invested at 8 percent?

1-280
2:- 800
3:-892
4:-1108
5:-1200 (all figures are in dollars).

I did it in a complex way.Can anyone pls do it in a simple method.
Thnaks.
ATQ
(10*x)/100 – [(2000-x)*8]/ 100 = 56

Solving this eqn

We will Get x= 1200

So ans = 2000-1200 = $ 800
Top
Post new topic Post Reply
• Page 1 of 1