Question

4. For an A.P., if tn = 24, n = 12, d= 2, then a
= ?
1)2
2)12
3)1​

Answer 1

Tn = a + (n-1)d
24=a + 11x2
24-22 = a
a = 2

Answer 2

Answer:

1)2

Step-by-step explanation:

tn= a+(n-1)d

tn =24

n=12

d=2

then USING THE FORMULA

tn = a+(n-1)d

24=a+(12-1)2

24=a+(11)2

24=a+22

a=24-22

a=2

so

1st option is the correct