Question

If 3+k,18+k,5+k+1are inAp then find K​

Answer 1

Step-by-step explanation:

in ap common difference is equal

• I. e.
• $a2 - a1 = a3 - a2$
• so,
• 18-k-(3+k)=5+k+1-(18+k)
• 18-k-3-k=6+k-18-k
• 15-2k=12
• 15-12=2k
• 3=2k
• $k = 3 \div 2$