Question

7,13,25,?,75,117 solve this series​

Answer 1

Answer:

49

Step-by-step explanation:

See, each number is increasing by the multiple of 6 after each case.

Like: 7,7+6,7+6+12, (unknown number), 75,117

so Unknown Number= Third multiple 7+6+12+(third multiple of 6)

= 7+6+12+18=43 (since the third multiple of 3 is 18)

Answer=43, series: 7,13,25,49,75,117.

Hence proved!