Question

How many multiple of 4 lie between 10 and 250? also their sum

Answer 1

thanks and please mark as brainliest

Answer 2

AP= 12,16,20.....,248

An= 248

A+(n-1)d=248

12+(n-1)4=248

12+4n+4=248

4n=248-16

n=232/4

n=58

58 multiple lie between 10 to 250

Sn=n/2 (2a+(n-1)d)=58/2(2×12+(58-1)4)

=29(24+57×4) =29(24+228)

=29×252 =6958