First term of an AP is 4 and the common difference is 3 . Its 12th term is same as the 8th term of another AP having first term -5 . Find the common difference of the second AP.
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Heya !!!
First term ( A ) = 4
And,
Common Difference ( D ) = 3
12 th term = A + 11D
=> 4 + 11 × 3
=> 4 + 33
=> 37
--------------------------
First term (A1 ) of another AP = -5
Let common Difference of another AP be D1
According to question,
12 th term of an AP = 8 th term of an another ap.
37 = A1 + 7D1
37 = -5 + 7D1
7D1 = 37+5
D1 = 42/7
D1 = 6
Hence,
common Difference (D1) of another AP is 6.
★ HOPE IT WILL HELP YOU ★
First term ( A ) = 4
And,
Common Difference ( D ) = 3
12 th term = A + 11D
=> 4 + 11 × 3
=> 4 + 33
=> 37
--------------------------
First term (A1 ) of another AP = -5
Let common Difference of another AP be D1
According to question,
12 th term of an AP = 8 th term of an another ap.
37 = A1 + 7D1
37 = -5 + 7D1
7D1 = 37+5
D1 = 42/7
D1 = 6
Hence,
common Difference (D1) of another AP is 6.
★ HOPE IT WILL HELP YOU ★
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