Question

how many terms of the A.P 7,14,21,,,are needed to give the sum 5740

Answer 1

40 is the right answer because first of all we take and by 22 A Plus and minus 1 into the = 25 send 40 then and by 22 into 7 plus and minus 1 into 7 equals to 5740 then and by to 14 + 7 and minus 7 equals to 5 7 4 0 then and 7 + 7 and equals to 1 1 4 8 0 then 7 and + 7 and Square equals to 1 1480 than 700 square + 7 - 11480 then BTech 7 common and n square plus and minus 1 6 4 0 = 0 then and by 27 + 7 and equals to 5 7 4 0 then 7 + 7 and into an equals to 5 7 4 0 into 2 then and c square + 41 - 40 bracket and minus 16 4 0 = 20 then and square + 4 1 and minus 40 and minus 1 6 4 0 = 20 then = 241