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A.4 is the right answer.
Group them in4 numbers each. Add first two & multiply the rest two, the results are equal.
17+8=5*5,
13+7=5*4,
6+12=6*3,
so10+6=4*?. Obviously now, ?=4.
A.4
I would say5, if the number is treated as being made upon4 subsequences of4 numbers each.
B.5
the answer is en 4 because it is 17,8,5,5 which all add up to 35 and 13,7,5,4 all add up to 29 and 6,12,6,3 add up to 27 and 10,6,4,4 which all add up to 24.
35, 29,27,24 the difference is 3 points
From the above question the answer is 4
4 SHOULD BE REPLACED IN THE SEQUENCE
