In how many ways one can climb up 8 steps given that he can climb a minimum of 1 and a maximum of 6 steps at once ?
PS: In case you approach such questions using fibonacci number series, pls post your approach..
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Remainder when 22^23+10^35 is divided by 45
From a solid cylinder of diameter 30 cm and height 20 cm, a cube of the largest possible volume is chiselled out. Find the volume the cube.
A kookaburra ball rebounds each time to height equal to half of the height of the prev bounce. If it is dropped from 20 m find the distance travelled when it hits the ground fr 7th tym.
A set consists of 6 integers such that sum of elements is equal to 12 and product of elements is equal to 64. How many such sets are possible?
any approach other than hit and trial?
No of times 1 appears from 1 to 10000 including the both numbers? a) 3493 b) 3700 c) 4000 d) none of these
http://imgur.com/4TL1ePT
[Approach ?]
Statement 1: A is 2 times more efficient than B
Statement 2: A is twice as efficient as B
What is the difference between the 2 statements?
In a triangle ABC AB=20,BC = 28, & CA = 36.A semicircle with its diameter on AC is constructed such that it touches AB & BC.Find the radius of the semicircle.
A fires two bullets from the same place at an interval of 12 min but raju sitting in a train approaching the place hears at the interval of 11min30sec after the first.what is the approximate speed of train(speed of sound 330mps) Plzz..share the approach
- 660/23
- 330/23
0 voters
What is the last 2 digits of 2^2^2222?
- 16
- 04
- None of these
- 74
0 voters
how many four-digit numbers in decimal system have exactly three digits when expressed in both base 12 and base 14?
Find all possible paths from the lattice point(1,1) to (22,21) below the diagonal ?
Find the coefficient of x^5*y^8 in (2x -3y)^13 ?
What is the coefficient of x^99*y^60*z^14 & x^99*y^61*z^13?
in (2x^3 + y - z^2)^100?
A was driving his car. Aftr covering 10 km, his speed got reduced by 2/5. Thus he reached destination 30 mins late. Had the problem in engine occurred after 15 km, he would hav reached destination 20 mins late. Find the original distance and original speed
Plz explain the speed calculation.
- 33.33 km, 60 kmph
- 25 km, 20 kmph
- 25 km, 45kmph
- 15 km, 30 kmph
0 voters
A donut shop sells 12 types of donuts. A manager wants to buy six donuts, one each for himself and his five employees.
a) Suppose that he does this by selecting a specific type of donut for each person. (He can select the same type of donut for more than one person.) In howmany ways can he do this?
b) How many ways could he select the donuts if he wants to ensure that he chooses a different type of donut for each person?
c) Suppose instead that he wishes to select one donut of each of six different types and place them in the breakroom. In how many ways can he do this? (The order of the donuts in the box is irrelevant.)