Acan do a piece of work in 25 days and b can finish it in 20 days. they work together for 5 days, then a leaves. in how many days will b finish the work? ?

If A can do a piece of work in 25 days, then he can do of all work per day.

If B can finish work in 20 days, then he can do of all work per day.

Together per day they can do

of all work.

They work together for 5 days, then the work done after these 5 days is

of all work.

If then B finishes alone, it is left for him

of all work.

Since B can do of all work per day, then of all work he can do in 11 days.

B will finish the work in 11 days.

b. 1.25 hr

step-by-step explanation:

if you have a constant speed of 60 mph, then you have a ratio between 60 mi. to 1 hr. dividing both sides by 60 we get the ratio

1 mi. to

then mult. both sides by 75 we get the ratio

75 mi. to

simplifying we get

75 mi. to

or 1.25 hr.

option: d is the correct answer.

d) none of the above.

step-by-step explanation:

clearly from the figure attached to the question we could see that there is no shape given. hence without any shape given in the figure and after rotation we can't obtained a square pyramid.

since, to obtain a image we need a proper figure of the pre-image so that it can be transformed.

hence, the correct answer is:

d) none of the above.

step-by-step explanation: