Ravi can pack 54 pens or 72 pencils by working 6 hours a day and Sunil can pack 45 pens or 70 pencils by working 5 hours a day they received an order of packing 4500 and 5600 . if they work together for 10 hours a day then how many minimum days can they deliver the order?
Answers
Given:
Ravi can pack 54 pens or 72 pencils by working 6 hours a day.
Sunil can pack 45 pens or 70 pencils by working 5 hours a day.
they received an order of packing 4500 and 5600.
To Find:
if they work together for 10 hours a day then how many minimum days can they deliver the order?
Solution:
Step 1:
In 6 hours ravi pack = 54 pens or 72 pencils
in 1 hour ravi pack = 54/6 pens or 72/6 pencils
= 9 pens or 12 pencils
in 10 hour ravi pack = 90 pens or 120 pencils
Step 2:
In 5 hours sunil pack = 45 pens or 70 pencils
in 1 hour sunil pack = 45/5 pens or 70/5 pencils
= 9 pens or 14 pencils
in 10 hour sunil pack = 90 pens or 140 pencils
step 3:
Ravi & Sunil both can pack 90 pens in a day but sunil can pack 140 pencils in day.
Let sunil pack all the 5600 pencils = 5600/140 = 40 Days
4500 pens can be packed in 4500/90 = 50 Days
45 Days by Ravi & 5 Days by Sunil
So, Total days of sunil = 40 + 5 = 45 Days
Answer: Hence They can deliver the project in 45 Days
Given : Ravi can pack 54 pens or 72 pencils by working 6 hours a day and Sunil can pack 45 pens or 70 pencils by working 5 hours a day. They received an order of packing 4500 pens and 5600 pencils
To find : working together for 10 hours a day then in how many minimum days can they deliver the order
Solution:
Ravi can pack 54 pens or 72 pencils by working 6 hours a day
=> Ravi can pack 9 pens or 12 pencils by working 1 hours a day
=> Ravi can pack 90 pens or 120 pencils by working 10 hours a day
Sunil can pack 45 pens or 70 pencils by working 5 hours a day.
=> Sunil can pack 9 pens or 14 pencils by working 1 hours a day.
=> Sunil can pack 90 pens or 140 pencils by working 10 hours a day.
Ravi & Sunil both can pack 90 pens in a day
but sunil can pack 140 pencils in day
Let sunil pack all the 5600 pencils = 5600/140 = 40 Days
Now 4500 pens can be packed in 4500/90 = 50 Days
45 Days by Ravi & 5 Days by Sunil
Sunil Total days = 40 + 5 = 45 Days
Hence They can deliver the project in 45 Days
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