4*" Find "25+28+31+cdots+100

The largest term common to the sequences 1, 11, 21, 31, cdots to 100 terms and 31, 36, 41, 46, cdots to 100 term is

Find the sum: 25+28+31+\ dot\ +100 (ii) 18+15 1/2+13+\ dot+\ (-49 1/2)

The sum of the first 10 terms common to the series 17, 21, 25, ... and 16, 21, 26,31 , cdots is

Find the number of common terms of the two sequences 17,21,25, cdots 417 and 16 ,21 ,26 cdots 466 .

Find the sum: 25+ 28+31+…+100.

Find : 31.1xx100

Find the sum of n terms of the series : 5+7 +13 +31+85 + cdots .

Find (-25) xx (-31) using distributive property.