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pemba sherpa

· started a discussion

· 1 Months ago

A is answer (Question: 388259.0 )

{x*y}/1 = {(x+1.25a)*y}/1.5 ; let x and y be workers and time respectively.

therefore 2/5x = a; let 'a' be efficient workers

so percentage is {x-2/5x}/x * 100

3/5*100 =60%

Question:

The amount of work in a factory is increased by 50%. By what percent is it necessary to increase the number of workers to complete the new amount of work in planned time, if the new labour is 25% more efficient.

Options:
A)

60%

B)

66.66%    

C)

40%

D)

33.33%

Solution:

Ans: (c)

  

shashank gandhi

· commented

· 1 Months ago

ANSWER IS CORRECT .ONLY NEW WORKERS HAVE 40 % EFFICIENCY AND NOT ALL
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