Yogesh requires 3 days more than Vivek to do a work completely. If both
of them work together, the work can be completed in 2 days. Find the
number of days required for each of them to do the work completely.
Answers
The marked price on it in Krishna Electricals was Rs. 50000. If it was
sold to Kalyan Deshmukh at 10% discount, calculate the input GST
and output GST for Krishna Electricals if the rate of GST is 18%.
Answer:
Number of days required by Vivek = 3 days and
Number of days required by Yogesh = 6 days
Step-by-step explanation:
Let us suppose Vivek completes the work in ' x ' number of days
So,
Vivek's 1 day work =
Yogesh requires 3 days more than Vivek to do a work completely
So,
Yogesh completes the work in ' x + 3 ' days'
Yogesh's 1 day work =
When they are working together, work is completed in 2 days
Therefore,
+ =
=
=
4x + 6 = x² + 3x
x² + 3x - 4x - 6 = 0
x² - x - 6 = 0
Solving for x:
x² - 3x + 2x - 6 = 0
x ( x - 3 ) + 2 ( x - 3) = 0
( x + 2 ) ( x - 3 ) = 0
x = - 2 or x = 3
Since, Number of days cannot be negative
x = 3
That is,
Vivek completes the work in 3 days
And Yogesh completes the work in x + 3 days = 3 + 3 = 6 days
Hence,
Number of days required by Vivek = 3 days and
Number of days required by Yogesh = 6 days