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Maths Puzzle
Numerical Ability
if the 15th term of the AP is 45 and 20th term is 60 then find the 30th term of the AP
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- 90.a=3,d=3,by solving then for 30th term we get easly 90
- 10 years agoHelpfull: Yes(0) No(0)
- It is 90
15th term is 45 => a(15-1)+d = 45.
20th term is 60 => a(20-1)+d= 60.
Solve above two eq
We get a=d=3.
30th term is 90. - 10 years agoHelpfull: Yes(0) No(0)
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