Question

A and B can finish a piece of work in 16 days respectively. A started the work and worked at it 2 days.He was then joined by B.find the total time taken to finish the work..​

Answer 1

Answer:

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Answer 2

Answer:

The left work is done by B in 12 days .

Step-by-step explanation:

Given as :

A and B can finish a piece of work in 16 days

A started the work and worked at it 2 days

Let The left work is done by B in d days

So, A 1 day work = $\dfrac{1}{2}$

And A 2 days work = $\dfrac{1}{4}$

Left work = 1 - $\dfrac{1}{4}$

Or, left work = $\dfrac{3}{4}$

∵  $\dfrac{men\times day}{work}$ = constant

$\dfrac{16}{1} = \dfrac{d}{\frac{3}{4}}$

i.e d = 16 × $\dfrac{3}{4}$

or, d = 12

Hence,  The left work is done by B in 12 days . Answer