alleryचार पदांची एक मालिका 7 ने सुरू होते आणि प्रत्येक पायरीला 3 ने कमी होते. शेवटचे पद काय आहे?
A-1
B-2
C-3
D4
Answer & Solution
Correct answer: B. -2
ही पदे 7, 4, 1, -2 अशी आहेत, म्हणून चौथे पद -2 आहे.
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