Infosys
Company
If first term of AP is 5. 16th term is 45.find the sum of first 16 terms?
Read Solution (Total 1)
a=5
last (16th )term =45
sum of first 16 terms = 16*(5+45)/2= 16*25 = 400
13 years ago
Helpfull: Yes(1) No(0)
Infosys Other Question
1/3+1/5+1/x=1/8 , find x
4 horses are tethered at 4 corners of a square plot of side 63 meters so that they just cannot reach one another. the area left ungrazed is (a)675.5 (b)780.6 (c)785.8 (d)850.5