Mean of 1, 2, 2^2, 2^3........2^31 lies in between..
a) 2^24 to 2^25
b)2^25 to 2^26
c)2^26 to 2^27
d) 2^29 to 2^30
In how many different ways can a cube be painted if each face has to be painted either red or blue?
In how many ways can the letters of the word MELANCHOLY be arranged such that E appears before A and A appears before O?
How many ways to choose a committee of 3 people from 4 couples such that no couple is chosen in the committee ?
there are 2 clocks that show the exact time . now both develop some snag , as a result of which the first lose 3/2 min. per day , and second one gains 5/2 min per day . after how many days will the two simultaneously show correct time ?
2160
1440
1800
1080
kindly post your approach
How many 5 digit palindromes can be made using only the 3 digits 1,2,3
find the no of consecutive zeroes immediately after the decimal 1/20^37. (log 2 = 0.3010)
find the probabilty that the number chosen randomly from the first 1000 natural numbers is a multiple of 4 or a perfect square
53/200
133/500
281/1000
1093/4000
If 35ab=345673 where a and b are both positive integers, then how many different values can b take?
1
2
3
>3
If 35^ab=3^4*5^6*7^3 where a and b are both positive integers, then how many different values can b take?
1
2
3
>3
A, B, C are the vertices of a triangle of area 60 cm^2. Let AD be the median from A on BC and BY be the median from B on AD. If BY is extended to meet AC in E, what is the area of triangle AYE? (It would be really helpful if someone explains the process as well)
Three boys and five girls together can finish a job in 3 days. Working on the same job 3 girls take 5 days more than the time required by 2 boys. What is the ratio of efficiency of a boy to a girl?
2: 1
5: 2
3: 2
4: 1
If a, b, c > 0 and d
Hey what does 99 percentile approximately correspond to in terms of Marks ?
1.2.3+2.3.4+3.4.5...
find the sum to n terms of d series
Two friends A and B together completed a work in 12 days. Working alone A takes 10 more days than B to complete that work. If they were paid Rs. 12000 for the work done, find the share of A (in rupees)?
Explanation please
a b c are increasing real numbers
which of these are always true
1. a^4>b^4>c^4
2. 1/a 3. a+12>b+12>c+12
4.4a>4b>4c
5. a^b>b^c>c^a
E and F are the midpoints of AB and AC and Area of ABCD=54 units .BC//AD..Also BC=2AD .Find the difference between tri ADC and tri BEF if ABCD is a trapezium
9
12
13.5
14
plz share ur approach
wo circles of radii 'r' units and '2r' units intersect each other in such a way that their common chord is of the maximum possible length. What is the area (in square units) of the region that is common to the two circles?
@sureshpanda20 & @nitd09 please refer to the attached image for the soln.