Practice Questions Chat

Thx! Happy Halloween! 😇

Would you mind sharing your working ?

Here is mine -

x = 3*q + 1

y= 5*p + 1

Here p & q are quotients.

x + y = 3q + 5p + 2

We know x + y is divisible by 5

5q will be divisible by 5, so 3q when divided by 5 should leave a remainder 3 for the condition to hold true.

Its given that y is positive number, so even if p is 0, the equation holds true.

I think the answer is A

DS Question for the day

A = { root(n), n, n^2 }

If n is a nonnegative number, is the median and the average (arithmetic mean) of list A equal ?

(1) root(n)= n

(2) root(n)/3 + n/3 + n^2/3 - n = 0

Source: GMAT Club Tests | Difficulty : Medium

GMAT Club Tests are free today if anyone is looking for some prep. Just make sure you do review before the end of the day …

I think the answer to this is D , what about others ?

Hope you had a Halloween filled with tricks and treats.

Speaking of a list of scary Quant topics, I think Inequalities and Absolute value tops the list for many , so here is the topic of the day to master the fear of inequalities

Topic of the day -

Inequalities: Tips and hints

Created By: Bunuel

We will solve some exciting questions related to inequalities during the day !

I think the standard GMAT Club Test that can be redeemed for 60 points. GMAT Club Tests [Pro] can be redeemed for 90 points. The validity is 2 weeks for both. I will however let bb correct me if I am wrong here.

Hope you had a Halloween filled with tricks and treats.

Speaking of a list of scary Quant topics, I think Inequalities and Absolute value tops the list for many , so here is the topic of the day to master the fear of inequalities

Topic of the day -

Inequalities: Tips and hints
Created By: Bunuel

We will solve some exciting (and spooky) questions related to inequalities during the day !

Inequalities PS - Question 1

If x < 12, then it must be true that

(a) -x < -12
(b) -x - 2 < 14
(c) -x + 2 < -10
(d) x + 2 < 10
(e) x - 2 < 11

Source: GMAT Paper Tests | Difficulty : Medium

Is it D ?

D ?

Inequalities DS - Question 1

What is the value of integer x?

(1) 2x^2+9<9x
(2) |x+10|=2x+8

Source: GMAT Club Tests | Difficulty : Hard

Its given that x < 12, and we have to find out which of the following MUST be true given that x < 12

D states that x < 8 (i.e. x must be less than 8)

Does this always have to be true ?

Well no ! Say x = 11. x < 12; but x is not less than 8

Inequalities DS - Question 1

What is the value of integer x?

(1) 2x^2+9<9x
(2) |x+10|=2x+8

Source: GMAT Club Tests | Difficulty : Hard

Yup. Got my mistake, thanks for the clarification!

is it D ?

Inequalities PS - Question 2

If |x^2-x+1|=2x-1, then what is the sum of all possible values of x ?

A. 0
B. 1
C. 2
D. 3
E. 4

Source: GMAT Club Tests | Difficulty : Hard

Here is a spooky DS question on inequalities

Inequalities DS - Question 2

If |2x| = |3y|, what is the value of |2x + 3y|?

(1) 3x – 2y = 10
(2) xy < 0

Source: GMATPrepNow | Difficulty : Hard

D ?

B. Statement (1) is insufficient because the question is about ‘2x’ and ‘3y’ but statement (1) reverses these coefficients of x and y - ‘3x’ and ‘2y’.

However if statement (1) were 2x-3y = 10, then it would be sufficient.

We need to find the distance between 2x and 3y on a number line.

Statement 1 gives us the distance between 3x and 2y.Statement 1 at max gives us the information that 3x lies 10 units right to 2y when plotted on a number line.

However we cannot conclude the distance between 2x and 3y.

Hence Statement 1 is not sufficient

PS Butler Question - Nov 1

If x and y are integers such that (xy)^2 + x^2 – 2xy – 2x + 2 = 0, what is the value of y?

A. -2
B. -1
C. 0
D. 1
E. 2

Source: GMAT Club Tests | Difficulty : Medium

D ?

PS Butler Question 1 - Nov 2

The standard deviation of which of the following is equivalent with that of { m, r, p, n }?

A. {2m, 2r, 2p, 2n }

B. {m+2, r+2, p+2, n+2 }

C. {|m|, |r|, |p|, |n| }

D. {1/m, 1/r, 1/p, 1/n }

E. {m^2, r^2, p^2, n^2 }

Source: Math Revolution | Difficulty Level : Medium

DS Question of the day

X is a three-digit positive integer in which each digit is either 1 or 2. Y has the same digits as X, but in reverse order. What is the remainder when X is divided by 3?

(1) The hundreds digit of XY is 6.
(2) The tens digit of XY is 4.

Source: Manhattan GMAT | Difficulty : Hard
My thoughts : The question may seem tricky at first, but if you get the right way to deal with it, the question becomes a bit easy