Question

10 % of 10 + 20 % of 20 + 30 % of 30 + 40 % of 40 + ......+ 100 % of 100
is equal to

Answer 1

Answer:

Step-by-step explanation:

(10/100× 100) + (20/100×20) + (30/100×30) + (40/100× 40 ) + (100/100×100)

=1+4+9+16+100

=130