Complete the series: 121, 144, 169, 196, 225, 256 , …..,? A) 288 B) 289 C) 290 D) 291 Solution 121 + 23 = 144 , 144 + 25 = 169 , 169 + 27 = 196 , 196 + 29 = 225 , 225 + 31 = 256, 256 + 33 = 289 Related MCQs: At critical point i.e. p=225.65 kg/cm2, the latent enthalpy of vaporization is Complete the number series: 4, 6, 9, 13, ……? Complete the series 6,11, 21, 36, 56, ……,? x, 9, 25, 49, 81,121 find value of x?