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Mohan_Kumar_T's posts
Mohan_Kumar_T replied to GMAT Problem Solving Discussions
DS Question:
Mr. Tolstoy bought 100 CDs at $x and sold them at $y. Did Mr. Tolstoy profit from the deal?
1) 40% of x > 30% of y
2) 30% of x > 40% of y
Mohan_Kumar_T replied to GMAT Problem Solving Discussions
@ sausi007: After i have posted this, I struck with the same idea...only 3 & 9 can lead this p/q to non-terminating decimals if one of them were in the denominator.
Thanks your answer.....
Mohan_Kumar_T replied to GMAT Problem Solving Discussions
The following is an DS Question:-
If a, b, c, d & e are non- negative integers and p = 2^a*3^b and q = 2^c*3^d*5^e, Is p/q a terminating decimal????
1) a > b
2) c > d
I am confused with this problem....Please explain your answers....
Thanks in advance.
Mohan_Kumar_T replied to GMAT Problem Solving Discussions
@mucool: Sure...I will give my feedback there....Your video on Alligations explains concept based on the problems which you have chosen....Thats really good...So, please do both i.e., Initially give all the important concepts on a topic and then proceed with the some tricky problems based on that...
Mohan_Kumar_T replied to GMAT Problem Solving Discussions
@mucool : Please upload some videos on Permutations & combinations, probabilities, Inequalities & statistics.
Thanks in advance.
Mohan_Kumar_T replied to GMAT Problem Solving Discussions
@mucool: Please re-think over it....Me and my friend sat for a long time and ended up with this. It's a tricky problem.....
Mohan_Kumar_T replied to GMAT Problem Solving Discussions
Given that the two digit natural number should contain two distinct digits. So, Say N=ab,
'a' can be from 1 to 9 and so there are 9 chances.
'b' can be 0 to 9, but except a and hence it also has 9 chances.
This actually negotiates two digit natural numbers contain same digits lik...
2 2
Mohan_Kumar_T replied to GMAT Problem Solving Discussions
@sausi007: Thanks a lot.....I have got your idea. I feel yours is 100% correct.
@mucool: Please give me your approach and answer for my previous question.
Mohan_Kumar_T replied to GMAT Problem Solving Discussions
Let S be the set of all two digit natural numbers with distinct digits. In how many ways can the ordered pair (P, Q) be selected such that P & Q belongs to S and have atleast one digit in common?
Thanks in advance.
Mohan_Kumar_T replied to GMAT Data Sufficiency Discussions
Every item in an apparel shop has a tag that is either blue, green or yellow in colour. The items with a blue tag are priced between $20 and $30. The items with a green tag are priced between $12 and $18 and the items with a yellow tag $5 and $10. Mary buys three items, each with a different co...