In an AP 2,5,8,...... up to 60 terms,and 3,5,7,9,...... up to 50 terms, the terms identical in both are

a.15

b.17

c.25

d.30

• 2,5,8,11..........60th terms common diff=3, 60th term=179
  3,5,7,9,11...........50th terms cd=2,50th term=101
  common terms are like 5,11,17.....101
  LCM of both series=2&3=6
  since in common terms the numbers are 5,11,17........101
  a=5,d=6,t=101 we have to find n
  t=a+(n-1)d
  101=5+(n-1)6 =>n=17
• 11 years agoHelpfull: Yes(2) No(3)