A) \[0.09\]
B) \[0.7\]
C) \[7\]
D) \[~2.8\]
Correct Answer: D
Solution :
\[2.5+0.5-\left[ 1.6-\left\{ 3.2-3.2-\left( 2.1+K \right) \right\} \right]=0.6\] \[3-\left[ 1.6+2.1+K \right]=0.65\] \[1.6+2.1+K=2.35\] \[2.1\div K=2.35-1.\] \[2.1\div K=0.75\] \[\frac{2.1}{K}=0.75\] \[K=\frac{2.1}{0.75}=\frac{21}{7.5}=2.8\]You need to login to perform this action.
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