number puzzle 21
Number Puzzle #21
Number Puzzle #20
number puzzle 20
Answer is 15
Explanation: Numbers in outer circle are multiplication of the corresponding number in inner circle and 3.
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.
