Question

in an ap an+5=35 and an+1=23 then common difference. a) 3. b) 2. c) 3n d) 2n
please explain me the answer ​

Answer 1

Answer:

an+5=35 be equation1

an+1=23 be equation2

from eq1 and eq2 :-

it an is 20in eq1

and an is 22 in equation2

so, it is an even number so it is 2

i.e, option b