Please help with GMAT quant doubts

[bibinvarghese]

Originally Posted by Iridium Flare

Hi people,


4) Score Intervals:50 - 59 : 2
60 - 69 : 10
70 - 79 : 16
80 - 89 : 27
90 - 99 : 18

Which score interval contains the median of the 73 scores?
Ans: 80-89


Would appreciate the help... Thanks.

Median term is the middle term.
there are 28 terms before 80-89 the median is 37th term which is the 9th term in 80 -89

[Iridium Flare]

hi Bibin,

Sorry , the number of districts is 11.

[bibinvarghese]

Originally Posted by Iridium Flare

Hi people,

2) A certain city with a population of 132,000 is to be divided into voting districts, and no district is to have a population that is more than 10% greater than the population of any other district. What is the minimum possible population that the least populated district could have?
Options: 10700, 10800, 10900, 11000, 11100
Ans: 11000
Would appreciate the help... Thanks.

Originally Posted by Iridium Flare

hi Bibin,

Sorry , the number of districts is 11.

for minimum possible in the lowest district the other 10 has to carry the maximum so the number of people in big district is 132000/10.9
the number in small district is 132000/10.9*0.9
=10899~~10900
SO THE ANSWER YOU POSTED MAY BE WRONG!!!!!!!!!!!!!!

[Iridium Flare]

Hi Bibin,
Thanks for all the help..
Tried the last one on the voting districts again in the daytime wen i was more awake...

Since 10 districts have to have maximum number of people (which cant be more than 10%more of the 11th, lowest populated, district) I let the 11th district have x people..
Then the maximum the remaining 10 can have is 1.1x... which means the total voting population should be.. x + (1.1x * 10) and this should be = 132000

So x + 11x = 12x = 132000 So x = 11000 which is the least number a district can have..

Do you think this is right??

[vicky.verma]

Originally Posted by Iridium Flare

Hi people,

Need some help with the following sums i found on Kaplan mock papers. I'v given the answers along with the sums... I cant arrive at the answers

Any GMAT related Problem Solving discussion should go in this thread : GMAT Problem Solving Discussions

Please search the forum for related threads before creating a new one.

[bibinvarghese]

Sorry for the mistake your answer is right as its 10% more thats told
I took 10% lower than maximum.
THIS SHOWS HOW MUCH WRONG WE CAN GO IF WE MISTAKE BETWEEN 10% MORE AND 10% LESS

Originally Posted by Iridium Flare

Hi Bibin,
Thanks for all the help..
Tried the last one on the voting districts again in the daytime wen i was more awake...

Since 10 districts have to have maximum number of people (which cant be more than 10%more of the 11th, lowest populated, district) I let the 11th district have x people..
Then the maximum the remaining 10 can have is 1.1x... which means the total voting population should be.. x + (1.1x * 10) and this should be = 132000

So x + 11x = 12x = 132000 So x = 11000 which is the least number a district can have..

Do you think this is right??

[Iridium Flare]

Hey gr8.. thansk a lot for the help ya... i think i should solve quant in the daytime only!! hehe..

I'll post sums as n wen i get any.. hope to get more of the help.. thanks once again..

work, work harder, even if it is 10% more... to reach your goal.. hehe..