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Frequently Asked exam Math Questions and Answer Page 8618

(#M40020775) EXAM QUESTION permutation Keep an EYE

Six boxes are numbered 1,2,34,5 and 6. Each box must contain either a white ball or a black ball. At least one box must contain a black ball and boxes containing black balls must be consecutively numbered. find the total number of ways of placing the balls.

A.

15

B.

20

C.

21

D.

36

Asked In exam MAN (12 years ago)

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(#M40020773) EXAM QUESTION permutation Keep an EYE

In a certain laboratory, chemicals are identified by a colour-coding system. There are 20 different chemicals. Each one is coded with either a single colour or a unique two-colour pair. If the order of colours in the pairs does not matter, what is the minimum number of different colours needed to code all 20 chemicals with either a single colour or a unique pair of colours?

A.

7

B.

6

C.

5

D.

8

Asked In exam MAN (12 years ago)

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(#M40020769) EXAM QUESTION permutation Keep an EYE

How many natural numbers less than a lakh can be formed with the digits 0,6 and 9?

A.

242

B.

243

C.

728

D.

729

Asked In exam MAN (12 years ago)

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(#M40020768) EXAM QUESTION permutation Keep an EYE

A local delivery company has three packages to deliver to three different homes. if the packages are delivered at random to the three houses, how many ways are there for at least one house to get the wrong package?

A.

3

B.

5

C.

3!

D.

5!

Asked In exam MAN (12 years ago)

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(#M40020763) EXAM QUESTION permutation Keep an EYE

Jay wants to buy a total of 100 plants using exactly a sum of Rs 1000. He can buy Rose plants at Rs 20 per plant or marigold or Sun flower plants at Rs 5 and Re 1 per plant respectively. If he has to buy at least one of each plant and cannot buy any other type of plants, then in how many distinct ways can Jay make his purchase?

A.

2

B.

3

C.

4

D.

5

Asked In exam MAN (12 years ago)

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(#M40020757) EXAM QUESTION permutation Keep an EYE

There are five cards lying on the table in one row. Five numbers from among 1 to 100 have to be written on them, one number per card, such that the difference between the numbers on any two adjacent cards is not divisible by 4. The remainder when each of the 5 numbers is divided by 4 is written down on another card (the 6th card) in order. How many sequences can be written down on the 6th card?

A.

210

B.

210×33

C.

4×34

D.

4233

Asked In exam MAN (12 years ago)

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(#M40020750) EXAM QUESTION permutation Keep an EYE

There are eight boxes of chocolates, each box containing distinct number of chocolates from 1 to 8. In how many ways four of these boxes can be given to four persons (one boxes to each) such that the first person gets more chocolates than each of the three, the second person gets more chocolates than the third as well as the fourth persons and the third person gets more chocolates than fourth person?

A.

35

B.

70

C.

105

D.

210

Asked In exam MAN (12 years ago)

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(#M40020749) EXAM QUESTION permutation Keep an EYE

How many 5-digit positive integers exist the sum of whose digits are odd?

A.

36000

B.

38000

C.

45000

D.

90000

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(#M40020748) EXAM QUESTION permutation Keep an EYE

For a Lofoya Assets, a selection committee is to be chosen consisting of 5 ex-technicians. Now there are 12 representatives from four zones. It has further been decided that if Mr. Lofs is selected, Relk and Lemini will not be selected and vice-versa. In how many ways it can be done?

A.

572

B.

672

C.

472

D.

372

Asked In exam MAN (12 years ago)

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(#M40020746) EXAM QUESTION permutation Keep an EYE

How many different five-letter words can be formed using the letter from the world APPLE?

A.

120

B.

60

C.

240

D.

24

Asked In exam MAN (12 years ago)

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