You need to solve the below maths pyramid puzzle by replacing question mark with the perfect numbers.
168
12 14
? 2 ?
? 2 1 ?
A number if formed by multiplying two numbers below it.
168
12 14
6 2 7
3 2 1 7
Can you replace the question mark with the correct number, given the pair of numbers exhibits similar relationship?
? : 3839 :: 11 : 1209
16
Formular used :
pow(x,3) - pow(x,2) - 1
11*11*11 - 11*11 - 1
1331 - 121 - 1
1209
Similarly, we can solve
pow($x,3) - pow($x,2) - 1 = 3839
This condition holds true for number-16.
Can you replace the "?" in the picture table below with the appropriate numbers.
73 , 48
The number on the left is abtained by summing the two `number above it and subtract the sum by 5.
8 + 11 - 5 = 14
14 + 10 - 5 = 19
19 + 16 - 5 = 30
30 + 21 - 5 = 46
46 + 32 - 5 = 73
Right column = left number above it + 2 => 46 + 2 => 48
Which number comes next in the sequence
1 3 8 13 21 ?
17
1
3 = one (3 letters)
8 = three (5 letters) + one (3 letters)
13 = Eight (5 letters) + three (5 letters) + one (3 letters)
21 = Thirteen (8 letters) + Eight (5 letters) + three (5 letters) + one (3 letters)
17 = twentyOne (9 letters) + Thirteen(8 letters)
Which number will replace the "?" and complete the sequence?
1 1 2 4 3 9 4 61 5 52 6 63 7 ?
94
Logic Used: The numbers are in pair and every second number is the reverse of 1st number.
1 -> 1
2 -> 4
3 -> 9
4 -> 61 (Reverse of 16)
5 -> 52 (Reverse of 25)
6 -> 63 (Reverse of 36)
7 ->94 (Reverse of 49)
which number replaces the question mark?
30
Explanation:
As you can see the lower number rows are always bigger than upper row ones with the difference going up by 3 with every step
34 - 32 = 2
32 - 27 = 5 (difference going up by 3 from last difference)
56 - 48 = 8 (difference going up by 3 from last difference)
? - 19 = 11 (difference going up by 3 from last difference)
so ? = 30
Continue the sequence by choosing one of the options instead of the question mark.
B.
In every line and column, there are bicycles where 2 of them are facing left, and 1 is facing right, 2 with 2 pedals, and 1 with 12 with a steering wheel and 1 without.
In which direction should the missing arrow point ?
South
The series: south, east, north, south, west, east spirals clockwise from the top left-hand corner.
What Come next in sequence
1 , 4 , 5 , 6 , 7 , 9 , 11 ?
100 (The next number that doesn't contain a 'T' in the spelling).
What number represented by question mark
39
Working from top to bottom, double each number and subtract 1, then 2, then 3 etc.