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Grade: 12th Pass 
        
The 4th term of an A.P. is equal to 3 times the first term and the 7th term exceeds wice the 3rd term by 1. Find the 1st term and d.
8 years ago

Answers : (1)

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SAGAR SINGH - IIT DELHI
879 Points 
							
Dear student,


a+3d=3a


2a=3d


a+6d-a-2d=1


d=1/4


a=3/8
8 years ago
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