Get Started with ixamBee
Start learning 50% faster. Sign in now
Number of white balls = 8 Let x be the number of black balls. Total number of balls in the bag = 8 + x Also, the probability of drawing a black ball from the bag is twice that of drawing a white ball. ⇒ x/(8 + x) = 2 [8/(8 + x)] ⇒ x = 2 × 8 = 16 Hence, the number of black balls in the bag = 16
‘A’ can do 30% of the work in 12 days. ‘B’ can do the whole work in 50 days. Find the time taken by them together to do 75% of the work.
...A, B, and C each have different rates of completing a task; A can finish it in 36 days, B in 60 days, and C in 30 days. Initially, they begin the work c...
'K' and 'L' together can complete a work in 24 days. They started working together but after 16 days, 'L' left and remaining work was completed by 'K' a...
A and B can jointly finish a task in 42 days, while B and C together take 35 days to finish the same task. If B can finish the task alone in 105 days, h...
A and B together can complete a work in 20 days. After working together for 8 days, B leaves, and A completes the remaining work in 16 more days. In how...
A can finish a task in 32 days, while B can complete the same task 8 days sooner than A. If they together earn a total of Rs. 1050 for the job, how much...
'A' and 'B' can together complete a job in 15 days. If 'B' alone can finish 50% of the job in 20 days, how long would it take 'A' alone to complete the ...
4 girls working together for 1 day complete the same amount of work as 6 men working together for 1 day. The efficiency of 1 man ...
Rahul, Rohit, and Raj alone can complete a project in 40, 80, and 120 days respectively. All of them started working together, but after 10 days, Rahul ...
