Great sir..main kitna exam me ye wala question wrong ans kiya hai..lekin ab full clear hai...Math a weak achi ami sir...apnar channel through clear korte prchi aste aste
A can do 1/3 of a work in 5 days and B can do 2/5 of the work in 10 days. In how many days both A and B together can do the work. Please discuss these type questions with trick. 👍
Total work= efficiency X time For A: 1/3= eff. X 5days Eff of A= 1/15 For B: 2/5= eff. X 10days Eff. Of B= 1/25 A and B together= 1/15+1/25= 8/75 Time is inversely proportional to efficiency so , they take 75/8 days to complete the work together.
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I noticed one thing in this type of question. LCM of 'or' variables will be the ans of the Question
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A can do 1/3 of a work in 5 days and B can do 2/5 of the work in 10 days. In how many days both A and B together can do the work. Please discuss these type questions with trick. 👍
bro do you have PGCET tommorow or what .????
A in 15day
B in 25day LCM 75 efficiencies are 5 and 3
75÷8 days
Total work= efficiency X time
For A: 1/3= eff. X 5days
Eff of A= 1/15
For B: 2/5= eff. X 10days
Eff. Of B= 1/25
A and B together= 1/15+1/25= 8/75
Time is inversely proportional to efficiency so , they take 75/8 days to complete the work together.
Question 4 in ruclips.net/video/y7bR6hIfM1M/видео.html
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