Discussion

Explanation:

Let the daily compensation of the laborer be c.

Let number of days worked be d.

∴ Total earnings (e) = c × d = 20,000.

According to the conditions given, new earnings (e’) = 1.1c × 0.9d = 0.99 × cd = 0.99 × 20000 = Rs. 19,800.

Alternately,
Total earnings increases by 10% (due to compensation) and then reduces by 10% (due to number of days).

When a number is increased and then decreased by p% successively, overall % change = -p2/100%

∴ net change in salary = -1%

New salary = 20000(1 - 1%) = Rs. 19,800.

Hence, option (d).

» Your doubt will be displayed only after approval.


Doubts


Feedback

Help us build a Free and Comprehensive Preparation portal for various competitive exams by providing us your valuable feedback about Apti4All and how it can be improved.


© 2024 | All Rights Reserved | Apti4All