What should come in place of the question mark (?) in the given series?
277, 254, 221, ?, 125, 62

Given: 277, 254, 221, ?, 125, 62

Logic: Double difference is 10.

277 - 254 = 23

254 - 221 = 33

221 - ? = ?

? - 125 = ?

125 - 62 = 63

The difference are: 23, 33, ?, ?, 63

23 + 10 = 33

33 + 10 = 43

43 + 10 = 53

53 + 10 = 63

Now apply:

221 - 43 = 178

178 - 53 = 125

So, the missing term is 178.

Thus, correct option is (c).