Question

1+2+3+.......+50= 1275. എങ്കിൽ 3+6+9+.....+150 =

• A. 3825
• B. 3725
• C. 3925
• D. 3875

Answer 1

Answer:

A. 3825

• 1+2+3+.........+50 = 1275 3(1+2+3+......+50) = 3 x 1275 = 3825