74.2k views
4 votes
Kong took %15, percent fewer seconds than Nolan took to complete his multiplication timed test. Kong took 85seconds. How many seconds did Nolan take?

User Ddprrt
by
8.5k points

1 Answer

3 votes
Nolan took x seconds.
Kong took 15% less than x seconds.
100% - 15% = 85%
Kong took 85% of Nolan;s time, so Kong took 85% * x = 0.85x seconds.
Kong took 85 seconds, so 0.85x = 85

0.85x = 85

Divide both sides by 0.85.

x = 100

Answer: Nolan took 100 seconds.
User Oibe
by
8.3k points
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories