The pie chart shows the income of a civil serva... - JAMB Mathematics 2020 Question

The total angle in a pie chart = 360${}^o$.

Hence,

360${}^o$ - (60${}^o$ + 60${}^o$ + 67 + 50 = 237${}^o$) 

360${}^o$ - 237 = 130${}^o$ 

Salary = $\frac{123}{360}X\frac{N6000}{1}$ 

= N2,050