6 boys and 8 girls can do a piece of work in 12 days. 7 boys and 11 girls can do the same piece of work in 10 days. In how many days can 2 boys and 6 girls complete the same piece of work, working together?

- P and Q can complete a work in 28 days and 42 days, respectively. P, Q and R together can complete the work in 14 days. If R get a total wage of Rs. 5460 to complete the work alone, then find the per day wage of R.
- Shivam invested 25000 at 12% p.a. simple interest for ‘x’ months. If at the end of ‘x’ months, he received a total amount of Rs.30000. What is the value of ‘x’ (in years)?
- A and B together can complete a piece of work in 30 days while A alone can complete 50% of the work in 25 days. Find the time taken by B to complete 20% of the work.
- A
^{2}type ‘P’ pipes can fill a tank in 450 hours, while B^{2}type ‘Q’ pipes can fill the same tank in 648 hours. (10A × 6B) type ‘P’ pipes can fill the same tank in how many hours? (Efficiency of a type P and a type Q pipe is same) - P alone can finish a piece of work ‘M’ in 8 days while Q takes 4 days to finish it alone. P, Q and R working together can finish the work ‘N’ which is 15 times of work ‘M’ in 8 days. How long will R take to finish work ‘N’, when working alone?
- A and B can complete a work together in 30 days. If A alone can complete one-third of the work in ‘x’ days and remaining work is completed by B alone in 2x days, then find the value of x.
- Working alone, B can complete the work in 30 days. C is twice as efficient as B and A takes 20 days more than it takes C to complete the work. Working together, in how much time would they be able to complete 9 such works?
- Karan, Arjun and Krunal alone can complete a work in 35, 70 and 60 days respectively. All of them started working together but after 3 days from start Karan left the job and after 5 more days Arjun also left the job. So for how many days did Krunal work?
- A and B can complete a work together in 36 days. If A alone can complete one-fourth of the work in ‘x’ days and remaining work is completed by B alone in 3x days, then find the value of x.

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