Question

Kong took 15\%15%15, percent fewer seconds than Nolan took to complete his multiplication timed test. Kong took 858585 seconds.
How many seconds did Nolan take?

Answer 1

Answer:

Nolan takes 100 seconds

Step-by-step explanation:

Let x be the time ( in seconds ) taken by Nolan,

∵ Kong took 15% percent fewer seconds than Nolan,

So, the time taken by Kong = x - 15% of x

$=x - \frac{15x}{100}$

$=x-0.15x$

$=0.85x$

According to the question,

0.85x = 85

$\implies x =\frac{85}{0.85} = 100$

Hence, the time taken by Nolan would be 100 seconds.

Learn more :

1) A’s salary is 20% lower than B’s salary, which is 15% lower than C’s salary. by how much percent is C’s salary more than C’s salary?

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2) A earns 10% more than B But 15% less than C if B earns 85 then C earns :

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Answer 2

Answer:

100

Step-by-step explanation: