Question

if For an A.P.
t7=22, t21 = 64
What is t=41​

Answer 1

T7=22 ;T21=64

T7=a+6d=22.......eq...1

T21=a+20d=64......eq..2

solving equation 1 and 2 by substitution method

14d=42

d=7

putting value of d in eq...1

a+6*7=22

a+42=22

a=22-42

a=-20

T41=a+40d

T41=-20+40*7

T41=-20+280

t41=260........EXPECTING THANKS

Answer 2

Answer:

ans is 124

Step-by-step explanation:

use formUla a+(n-1)d