Question

Find the sum of all two digit no.when we divide the no.by 6 then it leaves remainder4

Answer 1

AP WILL BE

10,16,22.... ....94

WE HAVE TI FIND SN

But first we will find n

an=a+(n-1)d

94=10+(n-1)6

84=(n-1)6

15=n

now

sn=15/2(2×10+14×6)

sn=15/2(104)

sn=780

Answer 2

Refer to the attachment.

hope it helps you.