Question

Identify the missing number in the
following sequence
1, 13, 41, 85, ?, 221, 313
163
А

Answer 1

Answer:

in between each number, the difference is 12,12+16,12+16+16,12+16+16+16,12+16+16+16+16 and so on

the difference between 1 and 13 is 12.

the difference between 13 and 41 is 12+16=28

the difference between 41 and 85 is 12+16+16=44

so the difference between 85 and '?' will be 12+16+16+16=60

so,'?'-85=12+16+16+16

'?'-85=60

'?'=60+85=145

so the missing number is 145

if you want to still check it out

the difference between 145 and 221 is 12+16+16+16+16=76

finally the difference between 221 and 313 is 12+16+16+16+16+16=92

Step-by-step explanation:

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