pls approach... for this probability in gambling games.... https://drive.google.com/file/d/0B5L0mFb8nxAEZ0J1WEhzQUowSE0/view?usp=docslist_api
Hi folks, Please explain as to how can we identify the 'a' and 'r' values in the question and solution described in the below image.
Please explain as to how can we find different values of 'a' and 'r' that satisfy the below equation:
a(1 + r + r^2) = 57
Solution shows that the different values of a = 1, 12 etc.... How can these values be found without resorting to trial and error ?
For all the help I am showered with I will be very grateful. Thanks
Find the number of positive divisors of N^2 such that the positive divisors are less than N and donot divide N for N = 2^17 * 3^9 * 5^3
mr . dharmesh shah offers successive discount of 5 % and 15% where as mr.verma offers successive discount of 8 % and 12 %. if the final selling price is same in either case what is the ratio of their marked price
mr.doshi instead of marking up the cost price by 10% discounted the cost price by 10% and prepared the price tag of a shirt. A discount of 5% is applicable to the list price. because of the mistake the company earned rs. 76 less per shirt. what is the cost price of the shirt
How to find out last two digits of a number?
Finding out last two digits of a number is a skill that will help you not only solve some tough questions but quickly eliminate a few wrong options as well. Also, it is a skill that you can develop and master in less than 15 minutes. All you need to do is to remember a few rules and the rest will follow. Read More..
https://www.misbbocconi.com/blog/knowledge/guest-article/cat-prep-series-how-to-find-out-last-two-digits-of-a-number/
mocks for nmat - which is better, CL or TF?
24men can do a work in 10 days. The same work is done by 32women in 18 days. Then number of days taken by 1 man to finish the work is less than by the number of days taken by 1 woman to finish the same work is?
Given Question is: Suppose ∆ABC be a right-angled triangle where ∠A=90° and AD⊥BC. If Area (∆ABC) = 40 cm^2, Area (∆ACD)= 10 cm^2 and AC = 9 cm, then the length of BC is?
My question: Solve using two methods..1/2b*h=Area of ABC and using ratio of areas..why is BC coming different in both methods? or am i missing something? thanks.
P.S : i dont have the OA.
Here, I know slope of AB would be -4 hence that of other line would be 1/4.
But how to find out the equation of line touching the circle at B?
In a 8 × 8 chessboard, there are 64 squares of smallest size 2 squares are chosen at random. In how many ways this can be done if they share exactly one vertex.
OA:98
P and Q started moving simultaneously from point X and Y respectively on a circular track in the same direction. XY = 2km. and length of the track is 6 km. The initial position of P was behind that of Q. P caught up with Q for the second time in 40 min. Had P started in opposite direction, they would have met for the first time in 12 min. Find the speed of P in km/hr.
- 16
- 4
- 6
- 14
0 voters
Akhil, Bunty, Chameli, Disha and Eku worked on a project, which was divided into a few phases such that only one person worked on each phase. The ages of these 5 persons were 36 yrs, 18 yrs, 9 yrs, 72 yrs and 24 yrs respectively at the time of the project. The work done per phase by them was inversely proportional to their ages in years. Akhil worked on 4 phases of the project whereas Bunty worked on 5 phases. Eku and Disha worked on 8 phases each and the rest of the phases were worked upon by Chameli, who received the honour of having worked upon 40% of the project. How many phases of the project did Chameli work on?
A shop keeper cheats to the extent of 10 percent while buying as well as selling, by using false weights. His gain percent is?
coeff of x^15 in the product of (1-x)(1-2x)(1-2^2x)....(1-2^15x) is equal to?
Please explain how the invalid scores in the following question - solution can be identified without trial and error.
Basically, how can I realize that the scores 70, 73 and 74 cannot be calculated in the above question. How can I be sure that there are no other values which are invalid between the range -25 to +75.
Please explain elaborately. Thanks in Advance.
A, B and C have a few coins with them. 7 times the number of coins that A has is equal to 5 times the number of coins B has while 6 times the number of coins B has is equal to 11 times the number of coins C has. What is the minimum number of coins with A, B and C put together?
Approach please
Using the digits 9,8,7,6 and 5 exactly once, two numbers M and N are formed such that their product is the maximum possible number. Find the sum of M and N
The product of three natural numbers – N1, N2 and N3 – is twelve times their H.C.F. How many ordered triplets (N1, N2, N3) are possible?
1. 12
2. 15
3. 18
4. 21 - Answer
Hi guys, please explain the logic behind it?