Alex can solve a problem in 4 minutes- Brian can solve the same problem in 1 5 th of the time taken by Alex- How long in seconds does it take Brian to solve the problem-

Given that, the time taken by Alex to solve a problem is nbsp;4× 60=240 sec And Brian takes one fifth nbsp;of the time taken by Alex to solve this problem ...

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Byju's Answer

Standard VI

Mathematics

Multiplication of Fractions

Alex can solv...

Question

Alex can solve a problem in 4 minutes. Brian can solve the same problem in ${\frac{1}{5}}^{t h}$ of the time taken by Alex. How long (in seconds) does it take Brian to solve the problem?

Open in App

Solution

Given that, the time taken by Alex to solve a problem is $4 \times 60 = 240 s e c$

And Brian takes one-fifth of the time taken by Alex to solve this problem.
So, Time taken by Brian
$= \frac{1}{5} \times 240 = \frac{240}{5} = 48 s e c$

Hence, Brian takes 48 seconds to solve the problem.

Suggest Corrections

Similar questions

Q. Alex can solve a problem in 4 minutes. Brian can solve the same problem in

{\frac{1}{5}}^{t h}

of the time taken by Alex. How long does it take Brian to solve the problem?

Alex can solve a problem in 4 minutes. Brian can solve the same problem in ${\frac{1}{5}}^{t h}$ of the time taken by Alex. How long does it take Brian to solve the problem?

Q. Alex and Brian run a marathon. Alex starts first and Brian starts 7 hours after Alex at twice the speed of Alex. Brian takes an hour of rest every

2^{n d}

hour for an hour. After how long does Brian reach to Alex?

Q. Help Alex solve the given problem.

The number of minutes needed to solve an exercise set of variation problems varies directly as the number of problems and inversely as the number of people working on the solutions. It takes $4$ people $36$ minutes to solve $18$ problems. How many minutes will it take $6$ people to solve $42$ problems.

Join BYJU'S Learning Program

Alex can solve a problem in 4 minutes. Brian can solve the same problem in 15th of the time taken by Alex. How long (in seconds) does it take Brian to solve the problem?

Given that, the time taken by Alex to solve a problem is 4×60=240 sec And Brian takes one-fifth of the time taken by Alex to solve this problem. So, Time taken by Brian =15×240=2405=48 sec Hence, Brian takes 48 seconds to solve the problem.

Alex can solve a problem in 4 minutes. Brian can solve the same problem in ${\frac{1}{5}}^{t h}$ of the time taken by Alex. How long (in seconds) does it take Brian to solve the problem?

Given that, the time taken by Alex to solve a problem is $4 \times 60 = 240 s e c$

And Brian takes one-fifth of the time taken by Alex to solve this problem.
So, Time taken by Brian
$= \frac{1}{5} \times 240 = \frac{240}{5} = 48 s e c$

Hence, Brian takes 48 seconds to solve the problem.