First pole = 1m
Sum of the length of the poles = 36m
The length of twelve pole from an AP if the third pole is 3m and the eight pole is 5m find the length of the first pole and the sum of the length of the pole
3 answers
How many numbers between 75 and 500 are divisible by 7?
AAAaannndd the bot gets it wrong yet again!
a+2d = 3
a+7d = 5
so
S12 = 12/2 (2*11/5+11*2/5) = 52 4/5
a+2d = 3
a+7d = 5
so
S12 = 12/2 (2*11/5+11*2/5) = 52 4/5