Question

3+6+9+12+15+18+21+24+27=?

Answer 1

3 + 6 + 9 + 12 + 15 + 18 + 21 + 24 + 27

= 135

Answer 2

3 + 6 + 9 + 12 + 15 + 18 + 21 + 24 + 27

= (3 + 27) + (6 + 24) + (9 + 21) + (12 + 18) + 15

=    30    +    30        + 30       + 30      + 15

= 30 x 4 + 15

= 120 + 15

= 135

Answer 3

3+6+9+12+15+18+21+24+27=135

Answer 4

bằng 135