1)

2.002 + 7.9 {2.8 - 6.3 (3.6 - 1.5) + 15.6} = ?


A) 2.002

B) 4.2845

C) 40.843

D) 42.845

Answer:

Option D

Explanation:

Given expression,2.002+7.9{2.8-6.3x2.1+15.6}
= 2.002+7.9{2.8-13.23+15.6}
=2.002+7.9{5.17}
=2.002+40.843
=42.845