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 C

Explanation:

Given 3[1.63.2(3.2+2.25x)]=0.65
3[1.63.23.2+2.25x]=0.65
3[1.6+2.25x]=0.65
31.62.25x=0.65
2.25x=1.40.65
2.25x=0.75
x=2.250.75=3