Multiple choice Directions: Fill the blank with correct alternative 24, 60, 120, 210, (…..) 300 336 420 525 Reveal answer Fill a bubble to check yourself B Correct answer Explanation The pattern is +36, +60, +90,…. i.e.+[6*(6+0)], +[6*(6+4)], +[6*(6+9)],…. So, Missing number = 210+[6*(6+15)] = 210+126 = 336.