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Question 38
In the following question, select the number which can be placed at the sign of question mark (?) from the given alternatives.
Solution
The sum of the first and second numbers in each row is multiplied by 3. After that, the first number is substrated from that obtained number to get the third number.
Row 1 : $$(6+13)\times3-6$$Â =Â $$19\times3-6$$ = 57-6 = 51
Row 2 : $$(4+7)\times3-4$$ = $$11\times3-4$$ = 33-4 = 29
Row 3 : $$(19+11)\times3-19$$ = $$30\times3-19$$ = 90-19 = 71
Hence 71 will come in place of the questoin mark.
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