Question

Harbans Lal can do a piece
of work in 24 days. If Bansi
Lal works twice as fast as
Harbans Lal, how long
would they take to finish
the work working together​

Answer 1

Answer:10

Step-by-step explanation:

Answer 2

Both Harbans Lal and Bansi Lal will complete the work together in 8 days.

Given:

Harbans Lal can do a piece of work in 24 days.

Bansi Lal works twice as fast as Harbans Lal  

To find:

How long would they take to finish the work working together​  

Solution:

From the data,

Harbans Lal can do a piece of work in 24 days.  

The work can be done by Harbans Lal in one day = 1/24th of the work

It is given that Bansi Lal works twice as fast as Harbans Lal,

The work can be done by Bansi Lal in one day = 2 (1/24) = 1/12

Let's assume the total work is one unit and both Harbans Lal and Bansi Lal completed the work in 'x' days

=> x [ 1/24 + 1/12 ] = 1  

=> x [ (1 + 2)/24 ] = 1

=> x [ 3/24 ] = 1

=> 3x = 24

=> x = 8

Therefore,

Both Harbans Lal and Bansi Lal will complete the work together in 8 days.

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