Question

Babu can eat a certain amount of donuts in 10 minutes while vinay can eat the same amount in 8 minutes anu is 5 / 2 times as efficient as Babu at eating donuts if all of them start eating at the same amount of donuts together how much time will it take for donuts to be over​

Answer 1

Answer:

Let doughnuts initially be x doughnuts.

Time taken by Babu to eat = 10 min

Time taken by Vinay to eat = 8 min

Time taken by Anu to eat = 10×5/2 min = 25 min

So in 1 min part of X doughnuts eaten by :

Babu = 1/10 th

Vinay = 1/8 th

Any = 1/25 th

So total part completed by three of them in 1 min : 1/10 + 1/8 + 1/25

= 53/200

So total time taken to eat x doughnuts is 200/53 min

which is approx. 3.773 mins

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