Average Practice Test 1

Average contribution of 5 men = Rs 35
Total amount paid by 5 men = 5 × 35 = Rs 175
According to the statement,
Average contribution of 6 men
$\frac{175+35+\mathit{x}}{6}=\mathit{x}$
$\Rightarrow 210+\mathit{x}=6\mathit{x}$
$\Rightarrow 5\mathit{x}=210$
$\mathit{x}=\frac{210}{5}=42$
Total amount of all six men = 42 × 6 = Rs 252