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Quantitative Ability Preparation for GMAT

(220 Posts)

This thread is dedicated to preparation for Quantitative Ability section of GMAT. You may share questions related to topics like Arithmetic, Algebra, Geometry & Measurement, Statistics, Modern Mathematics, Data Sufficiency etc.

Question should not exceed 100 characters.Use add options for multiple choice questions and "Uploadimage/Add related data" for passage text papers.
Question should be at least 10 characters long.
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Satyajeet Nayak
Shared from GMAT Mock Test - 2 on Dec 19, 2021 4:14 PM

Is the integer z a prime number?

(1) 70 ≤ z ≤ 75
(2) z is not divisible by 2 or 3.

 
Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.
Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.
BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.
EACH statement ALONE is sufficient.
Statements (1) and (2) TOGETHER are NOT sufficient.
Please type your answer before submitting.

The Q asks whether Z is a prime number. Therefore option C is correct.

Ponbharathi
Shared from Problem Solving Test - 3 on Dec 18, 2021 2:17 PM

The sum of the digits of a number is subtracted from the number. The resulting number is always divisible by _________.

 
9
7
6
4
2
Please type your answer before submitting.

PLEASE EXPLAIN

Yashraj Salunkhepatil
Shared from GMAT Mock Test - 5 on Aug 02, 2021 3:19 PM

A thoroughly blended biscuit mix includes only flour and baking powder. What is the ratio of the number of ounces of baking powder to the number of ounces of flour in the mix?

(1) Exactly 9.9 ounces of flour is contained in 10 ounces of the mix.
(2) Exactly 0.3 ounce of baking powder is contained in 30 ounces of the mix.

 
Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.
Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.
BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.
EACH statement ALONE is sufficient.
Statements (1) and (2) TOGETHER are NOT sufficient.
Please type your answer before submitting.

There is no conversion given for ounces and grams . If there was given one , the ratio would change since it is ration of grams to ounces

Ricky Khosla
Shared from Quantitative Aptitude on Oct 21, 2019 10:55 PM

How many integers n are there such that 1 < 5n + 5 < 25?

 
Five
Four
Three
Two
One
Please type your answer before submitting.

0 is a whole number not a integer

George
Shared from Factors and Multiples - 2 (GMAT) on Oct 09, 2019 3:51 PM

There are two check posts with rotating spotlights. These two posts are 500 m apart and the spotlights are 100 m high. One spotlight rotates anticlockwise and the other clockwise with speeds of 30° per minute and 45° per minute, respectively. Also, they flash at intervals of 2 minutes and 7 minutes, respectively. At 12 o'clock, both spotlights focused at the midpoint, joining the bases of the check posts. When will this happen again?

 
2:48
1:36
3:20
3:30
3:40
Please type your answer before submitting.

The question stem does not mention that the lights flashed when they focused at the mid-point.