Question

Which term of AP 4,9,14,19 is 79

$<marquee>❤️Solve With Explanation❤️<marquee>$​

Answer 1

$\huge{\purple{\mathbb{SOLUTION}}}$

tn = a + (n-1) d

79 = 4 + (n-1)5

79 = 4 + 5n - 5

79 = 5n - 1

5n = 79 + 1

5n = 80

n = 80/5

$\boxed{n = 16}$

${\bold{\blue{\text{Hope It Helps Dear}}}}$

Answer 2

n = 16

Step-by-step explanation:

◼ an = a + (n-1) d

• an = 79
• a = 4
• d = 5

➡ 79 = 4 + (n-1)5

➡ 79 = 4 + 5n - 5

➡ 79 = 5n - 1

➡ 5n = 79 + 1

➡ 5n = 80

➡ n = 80/5

➡ n = 16