ritam_s's posts
ritam_s replied to Official Quant thread for CAT 09-III (September...
having some basic conceptual doubts in Permutation,Combi n Probablity...pls guide me...thanks in advance
Q.
A student is allowed to select at most n books from a collection of 2n+1 books. If the total number of ways in which he can select at least one book is 63. Find value of n?
1. 4
ritam_s replied to Official Quant thread for CAT 09-III (September...
I think its a annuity based concept...can any1 guide me how to solve such problems
Q.
An amount of \$12820 due 3 yrs hence, is fully repaid in three annual installments starting after 1 year. The 1st instalment is 1/2 the 2nd instalment and 2nd instalment is 2/3rd of the 3rd. If the rate of ...
ritam_s replied to Official Quant thread for CAT 09-III (September...
consider base as 10
If log 242=a, log 80=b, log 45= c
Q1.express log 36 in terms of a,b,c
a. (c-1)(3c+b-4)/2
b. (c-1)(3c+b-4)/3
c. (c-1)(3c-b-4)/2
d. none of these
Q2.express log 66 in terms of a,b,c
a. /6
b. /6
c. 3(c-1)(3c+b-4)/6
ritam_s replied to Official Quant thread for CAT 09-III (September...
Q.
log (16/15) + 5 log (25/24) + 3 log( 81/80)= log x
x=?
a. 2
b. 3
c. 0
d. none of these
ritam_s replied to Quant by Arun Sharma
Pls explain
Q.
The weight of an iron bucket increases by 33.33% when filled with water to 50% of its capacity. Which of these may be 50% of the weight of the bucket when it is filled with water( assume the weight of bucket and its capacity in kg to be integers?
1. 7 kg
2. 6 kg
3. 5...
ritam_s replied to Quant by Arun Sharma
Pls explain
Q.
Each of A,B and C need a certain unique time to do a certain work.C needs 1 hr less than A to complete the work.Working together, they require 30 minutes to complete 50% of the job.The work also gets completed if A and B start working together and A leaves after 1 hr and B wo...
ritam_s replied to Quant by Arun Sharma
Pls expalin
Q.
Mini and Vinay are quiz masters preparing for a quiz.In 'x' minutes, Mini makes 'y' questions more than Vinay. If it were possible to reduce the time needed by each to make a question by 2 mins, then in 'x' minutes Mini would make '2y' questions more than Vinay. How many ques...
ritam_s replied to Quant by Arun Sharma
Pls Explain
Q.
Each of A,B and C need a certain unique time to do a certain work.C needs 1 hr less than A to complete the work.Working together, they require 30 minutes to complete 50% of the job.The work also gets completed if A and B start working together and A leaves after 1 hr and B wo...
ritam_s replied to Official Quant thread for CAT 09-II [July 09 on...
Pls guide
It takes 6 days for 3 women and 2 men working together to complete a work.3 men would do the same work 5 days sooner than 9 women.How many times does the output of a man exceed that of a woman?
1] 3 times
2] 4 times
3] 5 times
4] 6 times
5] 7 times
ritam_s replied to Quant by Arun Sharma
It takes 6 days for 3 women and 2 men working together to complete a work.3 men would do the same work 5 days sooner than 9 women.How many times does the output of a man exceed that of a woman?
1] 3 times
2] 4 times
3] 5 times
4] 6 times
5] 7 times