Question

Strikers at a plant were ordered to return to work and were told they would be fined Rs. $50$ the first day they failed to do so, Rs. $75$ the second day, Rs. $100$ the third day, and so on. If the strikers stayed out for $6$ days, what was the fine for the sixth day?

• A. $200$
• B. $150$
• C. $125$
• D. $175$

Answer 1

Answer: (D)

$175$

Strikers on plant fined Rs.$50$ on first day,& $75$ on second ,Rs$100$ on third and so on,

difference in fine from day$1$ to day$2=Rs.25$

For $6^{th}$ day,$n=6,a=50$ and $d=25$,

$=a+(n-1)d=50+(6-1)25=50+(5\times 25)=50+125=175$

Answer is$\left(D\right)$