number puzzle 20
Answer is 15
Explanation: Numbers in outer circle are multiplication of the corresponding number in inner circle and 3.
Number Puzzle #20
Number Puzzle #19
Answer if you can
? , 13, 49
9, 17, 69
13,11, 59
Check your answer:-
See AnswerAnswer courtesy Sandy, in disqus comments
Logic: For every row First column*2 + Second Column*3 = Third Column
for second row 9*2 + 17*3 = 69
for third row 13*2 + 11*3 = 59
for first row, lets say first column value is x, thus
x*2 + 13*3 = 49
2x = 49 – 39 = 10
x = 5
Number Puzzle #18
14, 10, 8
9, 16, 7
10, ?, 9
Answer is 13
How?
Actually the sum of the first two rows is 32
so the missing number should be 32-10-9=13.
Number Puzzle #17
Find the missing section
Answer is C
Number Puzzle #16
IF 11 = 20
12 = 31
13 = 42
14 = 53
Then 18 = ?
Answer with Explanation
Answer is 97.
How?
11 => (1+1)(1-1) => 20
12 => (2+1)(2-1) => 31
13 => (3+1)(3-1) => 42
14 => (4+1)(4-1) => 53
similarly
18 => (8+1)(8-1) => 97
Number Puzzle #15
IF 5 + 3 = 28
9 + 1 = 810
8 + 6 = 214
5 + 4 = 19
then 7 + 3 = ???
Answer with Explanation
Answer is 410.
How?
5 + 3 = (5-3)(5+3) = 28
9 + 1 = (9-1)(9+1) = 810
8 + 6 = (8-6)(8+6) = 214
similarly
7 + 3 = (7-3)(7+3) = 410
Number Puzzle #14
IF
2 + 3 = 10
8 + 4 = 96
7 + 2 = 63
6 + 5 = 66
then 9 + 3 = ?
Answer with Explanation
Answer is 108.
How?
2 + 3 = 2 *(2+3) = 10
8 + 4 = 8*(8+4) = 96
7 + 2 = 7*(7+2) = 63
6 + 5 = 6*(6+5) = 66
9 + 3 = 9*(9+3) = 108
Number Puzzle #13
IF
1 = 3
2 = 3
3 = 5
4 = 4
5 = 4
then 6 = ?
Answer with Explanation
Answer is 3.
How?
It simple, but you have to think more then the math 🙂
1 = one = 3 letters
2 = two = 3 letters
3 = three = 5 letters
4 = four = 4 letters
5 = five = 4 letters
6 = six = 3 letters
Number Puzzle #12
64 5 40
81 7 65
16 4 ?
Answer with Explanation
Answer is 16.
How?
Its a little trickier one then others.
sqr root(64) * 5 = 40
sqr root(81) * 7 = 63
sqr root(16) * 4 = ? = 16.
Number Puzzle #11
6 3 2
-3 ? 5
———-
2 6 7
Answer with Explanation
Answer is 6.
How?
It is the simple subtraction as we used to do in our early maths classes in our childhood, so just reminds us of those days of taking carry and subtracting.
