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Frequently Asked self Numerical Ability - Permutation and Combination Math Questions and Answer

(#M40030145) SELF QUESTION numbers Keep an EYE

i have 100 rs i want to buy 100 animals horse 0.75paise donkey 0.25paise elephant 5rs

karna (11 years ago)

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(#M40001391) SELF QUESTION How many methods Keep an EYE

How many methods are possible for arranging 5 boys and 4 girls in such a way that no 2 girls could sit together?

Dimple (14 years ago)

Solved Pargat Pal Singh Read Solution (13)

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(#M40040837) SELF QUESTION Permutation and Combination Keep an EYE

A box contains 3 white balls, 4 black balls and 5 yellow balls. In how many ways can 4 balls be drawn so that there is at least one yellow ball.
a) 652 b) 547 c) 425 d) 356 e)None of the above
d)460

Udaybhan Viswkarma (11 years ago)

Unsolved Read Solution (4)

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(#M40033877) SELF QUESTION Keep an EYE

If s1= {1,2,3,4,.....,23} & s2={207,208,209,210,.....,691}, how many elements of the set s2 are divisible by at least four distinct prime numbers that are elements of the set s1?

1.9
2.8
3.11
4.12

SONU GUPTA (11 years ago)

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(#M40009313) SELF QUESTION Keep an EYE

A number when divided by 8,7,6,5 leaves a remainder 1,2,3,4. find the number ?
a)3208 b)3209 c)3334 d)3210

Flower (13 years ago)

Unsolved Read Solution (2)

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(#M40001774) SELF QUESTION Gouri Shanker Poised26 December 2010 Keep an EYE

1)There are 3 piles of books on the table you need to arrange them in the self such that 1st book of each pile gets placed on the self,what is the possible no of arrangements:
a)12! b)12C3 * 9C4 c)12^12 d)none

Aashu (14 years ago)

Unsolved Read Solution (2)

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(#M40035003) SELF QUESTION permutation&combination Keep an EYE

A basket contains 3 bananas and 4 apples. In how many ways can select one or more fruits?

ramakrishna (11 years ago)

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(#M40039795) SELF QUESTION ranked in dictionary Keep an EYE

what is the rank of the word ASHISH in dicitionary?

amit kumar (11 years ago)

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(#M40001398) SELF QUESTION Keep an EYE

The total expense of a boarding house is partly fixed and partly variable with the number of boarders. When the number of boarders is 25, then the charge is Rs 70 per head and the same is Rs 60 when the number of boarders is 50. What would be the charge per head if there are 100 boarders?

Solution

According to the given condition x + (y/25) = 70 , x + (y/50) = 60
on solving we get y = 500 and x = 50
fixed charge = 50 and remaining 500 rupee of income will be distributed among all the boarders so in last case charge = 50 + (500/100) = 50 + 5 = 55


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suneil (14 years ago)

Solved Read Solution (1)

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(#M40024799) SELF QUESTION counting principle Keep an EYE

In a city, the bus route numbers consist of a natural number less than 100, followed by one of the letters A,B,C,D,E and F. How many different bus routes are possible?

anusha (12 years ago)

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