Question

plz plz plz answer plz plz plz​

Answer 1

Step-by-step explanation:

Even series can be solved by using the formula n*(n+1) where n is the last term.

and for consecutive numbers use the formula (n*(first number+last number))/2 where n is the total number of digits. for eg:- Let's take second question of consecutive series

n=(last no. - first no.)+1= (36-13)+1=24

according to the formula

(24*(13+36))/2

(24*49)/2

588

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