Question

If 1^3 + 2^3 + ......... + 9^3 = 2025, then
(0.11)^3 + (0.22)^3 + ...... (0.99)^3 will be
(A) 0·2695
(B) 2.695
(C) 3.695
(D) 0.3695

Kindly Answer In Full Detail!​

Answer 1

Answer:

(c) 2.695

Step-by-step explanation:

(0.11)3 + (0.22)3 +........... + (0.99)³

= (0.11)3 [13 + 23 + 33 +........... + 93 ]

= 0.001331 × 2025 = 2.695275 = 2.695 (approx.)