SSC CHSL 31 JAN 2017SHIFT 3 TIER 1 REASONING QUESTION 18

18.If 52*14= 33, 44*8= 26 and 86*14= 50, then what will 43*15 be?
Options:
1. 43
2. 58
3. 26
4. 29
Answer: 4
52*14= 33 => (52 + 14. / 2 = 33,
44*8= 26 => (44 + 8. / 2 = 26,
86*14= 50 => (86 + 14. / 2 = 50
Then 43*15 will be (43 + 15) / 2 = 29