In how many ways can 12 persons take seat in a row of 20 fixed seats so that each person has exactly one neighbour?
Approach??
8 teams in a Round robin tournament. Top 4 teams qualify for a knockout. Win 2 pts. Lose 0 pt
1) Minimum no. Of matches a team can win and enter the next round?
2) maximum no. Of matches a team can win and cannot qualify?
Method?
A and B run a 1000 meter race. A gives head start of 40 m. to B and still beats him by 19 seconds. Again A gives head start of 30 sec. to B but this time B beats A by 40 m. Ratio of speed of A and B?
@Going_High
28! Mod 29^2.. Solution ke sath
any score improvement/concept strengthening courses offered by IMS/Time/etc? which one is good?
xyz is a 3 digit number such that xyz=x^3+y^3+z^3 What is the value of x?
If six persons are selected out of 10, in how many ways will a particular person be found among those six?
A. 124.
B. 126.
C. 144.
D. 84.
How to proceed after selecting 6 people by 10C6 which comes to 210. how to find that one particular person?
number of ways of sitting for 8 students around two tables in 2 diff rooms such that 4 students can sit around each table
options 7!/2 7!/4
Ram forms all possible four digit integers using the digits 1,2,3,4. He rings a bell if he finds at least one number is placed in it's original position, i.e., if 1 is in the first position (or) 2 in the second position & so on. After scrutinizing all the numbers, how many times will he ring the bell?.......Explanation also please.
find the number of successive zeroes after decimal points in (4/3)^200 given log 2=0.301 and log3=.4771?
OA is not known...... @Going_High please check this question..
A verticaltowerOP stands atthe centerOof a squareABCD. Let h and b denote the lengthOP and AB
respectively. Suppose APB 60 then the relationship between h and b can be expressed as a) 2b2 = h
2 b) 2h2 = b
2 c) 3b2 = 2h2 d) 3h
2 = 2b
2
- D
- B
- C
- A
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Find the number of integer which lie between 786 and 999786 if sum of their digit=25
There are 100 students out of which 83 like VA , 88 like QA and 51 like DILR . What is the maximum no. of students that like DILR alone .
Approach please.
Three equal circles of radius 2 cm intersect each other in such a way that each circle passes through the centres of the other two circles. Find the common area between the three circles.
- 3(π − √3)
- 2.5(π − √3)
- (π − √3)
- 2(π − √3)
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