Question

write tye 2oth term of the a.s 5,10,15,20
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Answer 1

Answer:

its easy solve it by your self

Answer 2

Answer:-

5,10,15,20.. are in AP

• a=5
• d=5

We know that

$\boxed{\sf a_n=a+(n-1)d}$

$\\ \qquad\sf\longmapsto a_{20}=5+(20-1)5$

$\\ \qquad\sf\longmapsto a_{20}=5+19\times 5$

$\\ \qquad\sf\longmapsto a_{20}=5+95$

$\\ \qquad\sf\longmapsto a_{20}=100$