Question

Susan takes twice as much time as Alex to bake a cake . if they work together they can finish the cake in 8 hours.in how many hours cnut susan bake cake alone​

Answer 1

Answer:

Time taken by Susan alone to bake the whole cake is 12 hours

Solution:

From the given, ratio of the efficiency of Susan and Alex, S: A is 2:1

Total number of hours in which both can bake the cake is 8 hours.

Here, the total efficiency is 2+1=3

$\text { work done }=\text { efficiency } \times \text { time }$

$3 \times 8=24$

If Susan who has 2 efficiency alone bakes the whole cake then the time taken will be

$24=2 \times \text { time taken }$

time taken = 12 hours

Therefore, The time taken by Susan alone to bake the cake is 12 hours