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ATQ, Weighted average = (2 × 8 + 3 × 8 + 3 × 6 + 4 × 6.5)/(2 + 3 + 3 + 4) = (16 + 24 + 18 + 26)/(12) = 84/12 = 7
50 men can complete a piece of work in 15 days. 10 men started the same work and worked for 10 days, and then joined by ‘x’ more men such that the r...
25 men can complete a piece of work in 13 days. One man starts the work and after every day one more man joins the work and this continues till the work...
A can complete a certain work in 12 days, while B can complete it in 15 days. After working together for 4 days, A leaves and B continues working alone....
'A' can complete a certain task in 60 days, while 'B' can do the same in 45 days. 'A' starts the task and works alone for 18 days, after which 'B' joins...
A and B together can complete a piece of work in 32 days while A alone can complete 40% of the work in 32 days. Find the time taken by B to compl...
If one man or two women or four boys or five girls can finish a work in 39 days, then how many days will one man, one woman, one boy and one girl togeth...
Neha and Priya are assigned a piece of work. Neha can complete 8 units of work each day, while Priya can finish the whole task alone in 32 days. If the ...
Work efficiency of Chacha and Bhatija are in the ratio of 3 : 1. They working together to do a piece of work and completed the work in 24 days. Now in h...
A and B together can do a piece of work in (p-8.8) days.The efficiency of D is 10% less than the efficiency of B. A and C together can do the same piece...
The efficiency of P, Q, R, S are in the ratio of 6:5:4:3. If P and R can do a work together in 6 days. Then How many days Q and S will take to complete ...
