Find 2 + 22 + 222 + 2222 ……. Upto n terms

Find 2 xx 5 xx 8 + 4 xx 7 xx 10 + 6 xx 9 xx 12 ……. Upto n terms.

Find 1/2 , (1^2 + 2^2) / 3 , (1^2 + 2^2 + 3^2) / 4 , (1^2 + 2^2 + 3^2 + 4^2) / 5 , ……. Upto 'n' terms.

Find the sum 2^2 + 4^2 + 6^2 + 8^2 …… upto to n terms.

Find 1^2/1 + (1^2 + 2^2) / 2 + (1^2 + 2^2 + 3^2) / 3 + …..upto n terms.

If (1 xx 2 + 2 xx 3 + 3 xx 4 + 4 xx 5+ … upto n terms) / (1 + 2 + 3 + 4 + ………………….. upto n terms) = 100 / 3 , find n

Find the sum 3 + 33 + 333 + ….. Upto n term.

Find the sum 8 + 88 + 888 + ….. Upto n term.

Find 2 xx 6 + 4 xx 9 + 6 xx 12 + …… upto n terms.

If (1 + 2 + 3 + 4 + 5 +………..upto n terms) / ( 1xx2 + 2xx3 + 3xx4 + 4xx5 + …. upto n terms) = 3/22 Find the value of n

If (1xx3 + 2xx5 + 3xx7 + ….. upto n terms) / ( 1^3 + 2^3 + 3^3 + …… upto n terms) = 5/9, find the value of n.