7+4=11 11+8=19 19+16=35 35+32=67 so the next no. is 67..............
Note the difference between each pair is doubled compared to the previous pair. 5 ; 7 = 2^1 7 ; 11 = 2^2 11 : 19 = 2^3 19 : 35 = 2^4 So 35 : x = 2^5 = 32 So 35 + 32 = 67 .
5, 11, 19.
67
67, 131, and 259.
7+4=11 11+8=19 19+16=35 35+32=67 so the next no. is 67..............
67 7 + 4 = 11 11 + 8 = 19 19 + 16 = 35 35 + 32 = 67 67 + 64 = 131 ...
11 - 7 = 4 19 - 11 = 8 35 - 19 = 16 67 - 35 = 32 Getting the picture? Just double the amount added on the previous one.
35. 5+2^1=5+2=7 7+2^2=7+4=11 11+2^3=11+8=19 19+2^4=19+16=35
7 11 19 35 67 131 259 515... Double the last number then take away 3 for the next number.
38
Note the difference between each pair is doubled compared to the previous pair. 5 ; 7 = 2^1 7 ; 11 = 2^2 11 : 19 = 2^3 19 : 35 = 2^4 So 35 : x = 2^5 = 32 So 35 + 32 = 67 .
To find the median, first you have to line up the number sequentially. 11 19 22 22 26 29 35 40 53 56 224 Then, you cross off one number on each side unil you have only one number left: 11 19 22 22 26 29 35 40 53 56 224 11 19 22 22 26 29 35 40 53 56 224 11 19 22 22 26 29 35 40 53 56 224 11 19 22 22 26 29 35 40 53 56 224 11 19 22 22 26 29 35 40 53 56 224 29 is the median, or middle, number.
5, 11, 19.
It is: 8
67
Reasoning: the difference between each number doubles up each time 7 (+4) 11 (+8) 19 (+16) 35 (+32)67