Question

139. Insert the missing number,
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Answer 1

Answer:

Missing number=27

Step-by-step explanation:

Given that:-

Ist figure: 30,34,8

(34-8)+4

=>26+4

=>30

IInd figure:-12,5,13

(13-5)+4

=>8+4

=>12

III rd figure:-?,30,7

=>(30-7)+4

=>23+4

=>27

Used rule:-

Difference of down numbers+4=upper number