rama can do a piece of work in 'a' days and vimal can da a piece of work in a+16 days. If both work together and finish in it 15 days find 'a'. Also find what fraction of the work rama complete in 3 days

option a is correct.

step-by-step explanation:

scale factor: it is used to find proportional measurements.

proportions means having the same ratio.

scale factor is the ratio of the model measurement to the actual measurement in a simplest form.

or we can say that the ratio of any two corresponding lengths in two similar geometric figures

if the scale factor is more than 1, then it is an enlargement,

if the scale factor less than 1, then it is a reduction.

given the two geometric figure:

by definition of proportions, we have

what is the rest of the question? ?

i think it’s a i believe