1) 3 - [1.6 - {3.2 - (3.2 + 2.25 + x)}] = 0.65. The value of x is : A) 0.3 B) 0.7 C) 3 D) 7 Answer: Option CExplanation:Given 3−[1.6−3.2−(3.2+2.25x)]=0.653−[1.6−3.2−3.2+2.25x]=0.653−[1.6+2.25x]=0.653−1.6−2.25x=0.652.25x=1.4−0.652.25x=0.75x=2.250.75=3