First term,a=4
Common difference,d = 3
In 2nd A.P
First Term,A=5
Common Difference,D = ?
According To Question
a↓12 = A↓8
a 11d = A 7D [a↓n = a (n-1)d]
Putting values,
4 11× 3 = 5 7D
=> -1 33/7 = D
Written on May 17, 2019, 9:41 p.m.
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Answer of this question
First term of an AP is 4 and the comments difference is 3.its 12th ter
Suman SinghaHere,In 1st A.P
First term,a=4
Common difference,d = 3
In 2nd A.P
First Term,A=5
Common Difference,D = ?
According To Question
a↓12 = A↓8
a 11d = A 7D [a↓n = a (n-1)d]
Putting values,
4 11× 3 = 5 7D
=> -1 33/7 = D
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