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Combination with Restrictions

Answer the qu...

Question

Answer the questions based on the given information. Numbers are written on the Chess Board as given
The total number of odd numbers on the white box are :

A

8

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B

16

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C

24

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D

32

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Solution

The correct option is D $16$
Every odd row has 4 odd numbers on white boxes

Number of odd rows $= 4$

$∴$ Number of odd numbers on white boxes $= 4 \times 4 = 16$

Option B is correct

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Similar questions

Answer the questions based on the given information. Numbers are written on the Chess Board as given

a_{8} = a_{1} + a_{2} + a_{3} + . . . . . . . + a_{7}

b_{8} = b_{1} + b_{2} + b_{3} + . . . . . . + b_{7}

.................
..................

h_{8} = h_{1} + h_{2} + h_{3} + . . . . . + h_{8} =

a_{8} + b_{8} + . . . . + h_{8} =

Q. Read the following information carefully to answer the questions that follow. The questions are based on following coding formats:

Study the following information to answer the given questions.
In a certain code.
‘House on the left’ is written as ‘ 4 9 3 2’
‘Left is also right’ is written as ‘ 9 7 6 5 ’
‘Flowers on people’ is written as ‘ 1 3 8’
‘People are right’ is written as ‘ 0 1 6’
‘House is’ written as ‘7 4’.

Q. 8 6 3 1 5 is coded as

100

boards in a box on which the number

1

100

are written. If one board is selected randomly from a box then find the probability of:
(1) The number on the board is two digit.
(2) The number on the board is a multiple of

7

.
(3) The number on the board is four digit.

Q. Read the following information carefully to answer the questions that follow. The questions are based on following coding formats:

Study the following information to answer the given questions.
In a certain code.
‘House on the left’ is written as ‘ 4 9 3 2’
‘Left is also right’ is written as ‘ 9 7 6 5 ’
‘Flowers on people’ is written as ‘ 1 3 8’
‘People are right’ is written as ‘ 0 1 6’
‘House is’ written as ‘7 4’.

Q. What does ‘6’ represents in this code?

Q. Read the following information carefully to answer the questions that follow. The questions are based on following coding formats:

Study the following information to answer the given questions.
In a certain code.
‘House on the left’ is written as ‘ 4 9 3 2’
‘Left is also right’ is written as ‘ 9 7 6 5 ’
‘Flowers on people’ is written as ‘ 1 3 8’
‘People are right’ is written as ‘ 0 1 6’
‘House is’ written as ‘7 4’.

Q. Which of the following represents ‘house the left flowers’?

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