October 9, 2023
October 9, 2023
October 9, 2023
###### Computer-Networks
October 9, 2023
 Question 2
Aamir and Birju can cut 5000g of wood in 20 min. Birju and Charles can cut 5000g of wood in 40 min. Charles and Aamir cut 5 kg of wood in 30 min. How much time Charles will take to cut 5 kg wood alone?
 A 120 min B 48 min C 240 min D 120 min
Question 2 Explanation:
Here in this question 5000g means 5kg only
So from that question Aamir (A) Birju (B) Charles (C)
Let Aamir, Birju and Charles alone can complete the work in A, B and C minutes respectively, then
1 min. work of (A+B)=1/20, (B+C)=1/40 and (C+A)=1/30
A + B + C = 13/240
1 min. work of C = (A+B+C) – (A+B) = 13/240 – 1/20 = 1/240
So C alone can complete the work in 240 min.
Question 2 Explanation:
Here in this question 5000g means 5kg only
So from that question Aamir (A) Birju (B) Charles (C)
Let Aamir, Birju and Charles alone can complete the work in A, B and C minutes respectively, then
1 min. work of (A+B)=1/20, (B+C)=1/40 and (C+A)=1/30
A + B + C = 13/240
1 min. work of C = (A+B+C) – (A+B) = 13/240 – 1/20 = 1/240
So C alone can complete the work in 240 min.