Qbasic programing to :find the sum of 12 terms of the series
7+11+15+...hence, the first term a=7, common difference d=4 and number of
terms n=12.

CLS

a = 7

FOR i = 1 TO 12

s = s + a

a = a + 4

NEXT i

PRINT s

END

CLS

a = 7

FOR i = 1 TO 12

s = s + a

a = a + 4

NEXT i

PRINT s

END

Qbasic programing to :find the sum of 12 terms of the series 7+11+15+...hence, the first term a=7,common difference d=4 and number of terms n=12.