The efficiency of Anmol is thrice then Vinay therefore Anmol finish the work in 60 days less then Vinay in how many days they finish the work working together?

अनमोल विनय की तुलना में तीन गुना अच्छा कारीगर है इसलिए विनय से 60 दिन काम को पूरा कर लेता है उसी काम को वे साथ मिलकर कितने दिन में पूरा करेंगे

This Question Asked In:
CGL, SSC
  • A. 23 Days
  • B. 22 Days
  • C. 23 1/4
  • D. 22 1/2
Correct Answer :D - 22 1/2
Detailed Solution Video
Video Credit –Nikhil Sharma Maths
Detailed Text Solution

Given:

Ratio of the efficiency of A and B = 3 : 1
Difference between time taken by B and A = 60 days

Formula Used:

Total Work = Efficiency × Time
Time is inversely proportional to efficiency

Calculation:

Ratio of time taken by A and B
= 1 : 3

Difference of ratio
= 3 − 1 = 2 parts = 60 days

So,
1 part = 30 days

Time taken by A = 1 part = 30 days
Time taken by B = 3 parts = 90 days

One day work of A = 1/30
One day work of B = 1/90

One day work done by A and B together
= 1/30 + 1/90
= (3 + 1) / 90
= 4/90
= 2/45

Time taken to complete the whole work together
= 1 ÷ (2/45)
= 45/2 days
= 22½ days

Final Answer:

They can complete the work together in **22½ days**.

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