Question

25th term of an ap is 51 and first term a=3 common difference​

Answer 1

Answer:

given- 25th term I.e. (a+24d) =51

and a=3

to find- common difference (d)

a+24d=51

3+24d=51

24d=51-3

24d=48

d=48/24=2

d=w

2

Answer 2

Answer:

The Common difference of the AP is 2

Step-by-step explanation:

• Arithmetic progression defined as  progression in which every term after the first is obtained by adding a constant value, called the common difference.
• The sequence of the AP is given by

          $a,a+d,a+2d,a+3d,.....$      where a is first term and d is common      

         difference

• The nth term of AP is given by $a_{n}=a+(n-1)d$

Step 1 of 1:

• The first term is 3
• The 25th term is 51
• Put these in the nth term formulae for 25 term ,

         $a_{25}=a+(25-1)d\\51=3+24d\\24d=48\\d=\frac{48}{24}\\ d=2$

Conclusion:

The common difference of AP is 2