Question

प्रश्न वाचक चिन्ह के जगह कोणती संख्या होगी?
102. 9. 12. 18. 30. ? (1) 40 (2) 54 (3) 45 (4) 60
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Answer 1

Answer:

9+3= 12 12+6=18 18 +12 = 30 30+24= 54

add with double of previous term which we are adding like 6 is double of 3 .. likewise 12 is double of 6