Maths Puzzles

1. A girl has 10 notes which amount to Rs.100.And there are no 10 Rs. notes.Can you guess the notes which are with her.(There are 1rupee and 2 rupee notes also.)

2.FUN WITH NUMBERS

Your friend has invited you for his birthday party.
But he has forgotten to mention his house number. Can you reach his
home from the clues given below ?
1. His house number is not an
even number
2. It is not divisible by 3
3. The house number does not
contain 3,7 or 9 in units place or
the tens place.

20          33           81
47          51           23
88          46           15
11          23           84
19          26           32
83          37           73
62          77           67
28          48           35
13          15           84
18          16           92

3. Which number replaces the question mark?

4. Which number replaces the question mark?

LOGICAL REASONING:

1. 13 , 29 , 89 , 181 , 545 ,     ?   
2. 13 : 2197 :: 16 :    ?
3. 6 : 180 : : 9 : ? 
4. 24 : 576 : :

Answers

1st Answer: This question has two answers.    
      i) no. of notes            --           notes
             1st note                            Rs.30
             2nd note                           Rs.30
             3rd note                            Rs.20
             4th note                            Rs.5
             5th note                            Rs.5
             6th note                            Rs.5
             7th note                            Rs.1
             8th note                            Rs.2
             9th note                            Rs.1
            10th note                           Rs.1
TOTAL    10                                Rs.100
   
ii)        no. of notes            --           notes
            1st note                            Rs.50
            2nd note                           Rs.20
            3rd note                            Rs.5
            4th note                            Rs.5
            5th note                            Rs.5
            6th note                            Rs.5
            7th note                            Rs.5
            8th note                            Rs.2
            9th note                            Rs.2
            10th note                          Rs.1
TOTAL      10                             Rs.100

2nd Answer :House number is 11.

3rd Answer : 39
Explanation:
Working from top to bottom, double each number and subtract 1, then 2, then 3 , then 4 , then 5.

4th Answer :4
Explanation
Working in columns, the sum of the numbers in each column is always 14.

LOGICAL REASONING  ANSWERS:
1. 13 X 2 + 3 = 29
    29 X 3 + 2 = 89
    89 X 2 + 3 = 181
  181 X 3 + 2 = 545
  545 X 2 + 3 = 1093
Therefore : ? = 1093.
2. 13 cube = 2197 , In the same way,
    16 cube = 4096.
Therefore : ? = 4096.
3. 6cube - 6 square=180  , In the same way,
    9 cube - 9 square = 648.
Therefore : ? = 648.
4. 24 square = 576 , In the same way,
     32 square = 1024.
Therefore : ? = 1024