Search found 467 matches


Hi Mitch,

Could you please let me know where i m wrong here


(z/x+y) ---- time travelled by either train
x(z/x+y) - yz/xy

by vipulgoyal

Thu Jan 12, 2017 8:19 am
Forum: Problem Solving
Topic: Distance of trains
Replies: 8
Views: 3444

Mod

WHAT r the values of x that will satisfy the equation:
|x – 2| - |x – 3| = |x – 5|?

OA [spoiler]4&6[/spoiler]

by vipulgoyal

Sun Oct 04, 2015 8:48 pm
Forum: Data Sufficiency
Topic: Mod
Replies: 2
Views: 1503

thanks Marty,

Having said that it is less likely appearing (second one) in exam, I am going to end this quest, however my curiously arouse bcz i saw same q in three different sources( which appears to be authentic) while studying stats .. thanks one again

by vipulgoyal

Sun Oct 04, 2015 12:27 am
Forum: Data Sufficiency
Topic: right relation b/w range and SD
Replies: 3
Views: 3786

right relation b/w range and SD

Hi Experts, Please shed some light on this , I hBeen trying to find right relation b/w range and SD, following q are related with this Gave some numbers about money cost. Is the range of these numbers greater than $500? 1). The median is $1,000 2). Standard deviation is $500 Is the standard deviatio...

by vipulgoyal

Sat Oct 03, 2015 12:32 pm
Forum: Data Sufficiency
Topic: right relation b/w range and SD
Replies: 3
Views: 3786

Experts please confirm, something aint right here, in my opinion OA should be D

by vipulgoyal

Sat Oct 03, 2015 11:23 am
Forum: Problem Solving
Topic: mode inequality
Replies: 5
Views: 1840

thanks Mitch,

Using same approach showed by you , I did similar Q and zeroed out with B

In the number line, is r between s and t?
1) | r – s | < | r – t |
2) | r – s | > | s – t |


Hope I am right on this part

by vipulgoyal

Sat Oct 03, 2015 10:48 am
Forum: Data Sufficiency
Topic: Mod
Replies: 3
Views: 1780

Hi Rich, Thanks for valuable insight, source was my previous assignment ( where i took classes,while back) unfortunately i lost explanation sheet, i googled it and didn't found ,newhere as far as q concerned Whether S is in between R and T? (1) | R - T | > | R - S | (2) | R - T | > | T - S | from 1....

by vipulgoyal

Sat Oct 03, 2015 10:33 am
Forum: Data Sufficiency
Topic: Mod
Replies: 2
Views: 1417

X,Y,Z ARE NUMBERS ON THE NUMBER LINE. IS X<Y<Z? (1) | Y - X | +| Y - Z | = | Z - X | (2) X < Z Thanks Mitch, Got the point I did, this way.. lets say IS X<Y<Z? is true now | Y - X | +| Y - Z | = | Z - X | = y-x (bcz y>x) - y+z = z-x therefore y= y, which is true , considering the given inequality in...

by vipulgoyal

Sat Oct 03, 2015 10:10 am
Forum: Data Sufficiency
Topic: mod
Replies: 3
Views: 1645

mod

X,Y,Z ARE NUMBERS ON THE NUMBER LINE. IS X<Y<Z?
(1) | Y – X | +| Y – Z | = | Z – X |
(2) X < Z


Oa n/a

by vipulgoyal

Wed Sep 30, 2015 10:24 pm
Forum: Data Sufficiency
Topic: mod
Replies: 3
Views: 1645

Mod

Whether S is in between R and T?
(1) | R – T | > | R - S |
(2) | R – T | > | T - S |


OA N/A

My take E

by vipulgoyal

Wed Sep 30, 2015 10:12 pm
Forum: Data Sufficiency
Topic: Mod
Replies: 2
Views: 1417

Mod

In the number line, is s between r and t?
(1) | r - s | < | r – t |
(2) | r – s | < | s – t |


OA N/A

my take B

by vipulgoyal

Wed Sep 30, 2015 10:11 pm
Forum: Data Sufficiency
Topic: Mod
Replies: 3
Views: 1780

experts plz tell , whats wrong in it

12/12 * 1/11 * 10/10 * 8/10(one pair) + 12/12 * 1/11 * 10/10 * 1/9(two pair) = 9/11

by vipulgoyal

Sat Sep 26, 2015 7:11 pm
Forum: Problem Solving
Topic: Probability question
Replies: 13
Views: 6563

Coordinate geometry parabola

If the graph represented by p(x) = ax^2 +bx +c passes through (-1,0) and (3,0) , is p(5) >0 ?
1. The y intercept of graph is 3
2. P(-4) < p(-3)

OA not given

Source- jamboree

by vipulgoyal

Fri Jul 03, 2015 1:33 am
Forum: Data Sufficiency
Topic: Coordinate geometry parabola
Replies: 1
Views: 1282

Coordinate geometry parabola

IF THE PARABOLA REPRESENTED BY F(X) = Px^2 +Qx+ R PASSES THRU (-5,0), (3,0) AND (0, -2). THEN WHICH OF THE FOLLOWING MUST BE TRUE. A) F (4) < F (3) B) F (0) = F (-2) C) F (3) >F (-1) options are not give, but right ans, which i guess sufficient enough to understand the concept [spoiler]B&C[/spoi...

by vipulgoyal

Fri Jul 03, 2015 1:28 am
Forum: Data Sufficiency
Topic: Coordinate geometry parabola
Replies: 2
Views: 1552

Coordinate geometry parabola

The line represented by which of the following equations does not interact with the line represented by
Y=3x^2 +5x +1
A) Y=2x^2 +5x +1
B) Y= x^2 +5x +2
C) Y=3x^2 +5x +2
D) Y=3x^2 +7x +2
E) Y=x^2 +7x +1

C

by vipulgoyal

Fri Jul 03, 2015 1:22 am
Forum: Data Sufficiency
Topic: Coordinate geometry parabola
Replies: 1
Views: 1704