Question
The probability of selecting a rotten apple randomly
from a heap of 1050 apples is 0.36. What is the number of rotten apples in the heap?Solution
Total number of apples in the heap = n(S) = 1050 Let E be the event of selecting a rotten apple from the heap. Number of outcomes favourable to E = n(E) P(E) = n(E)/n(S) 0.36 = n(E)/1050 ⇒ n(E) = 1050 × 0.36 ⇒ n(E) = 378 Therefore, the number of rotten apples in the heap = 378
Consider that 'A' and 'B' were collectively paid Rs. 9,000 for a job. Out of this amount, 'B' received Rs. 3,000. If 'B' can finish this task solo in 48...
- 18 men working for 6 hours a day can complete a work in 22 days. If 27 women are employed to work, then find how many hours a day they have to work to comp...
'Manoj' can complete some work alone in 40 days. 'Sohan' is twice as efficient as 'Rohan' and five times as efficient as 'Manoj'. If 'Manoj' and 'Rohan'...
P’s 4 days work is equal to Q’s 5 days work. If P and Q together can complete the work in 20 days then how much time Q will take to complete 40% of ...
- 8 men working for 5 hours a day can complete a work in 28 days. If 16 women are employed to work, then find how many hours a day they have to work to compl...
A’ and ‘B’ together can complete a work in 10 days while ‘A’ takes 18 days to complete the same work alone. If ‘C’ is 25% more efficient t...
A and B together can do a work in 6 days. If A can alone do the same work in 9 days, then in how many days B alone will do the same work?
Anil and Ashish receive Rs.1400 for work of 7 days. If Anil is 4 times efficient than Ashish, then find the daily wage received by Ashish.
Suppose ‘n’ employees can process all the files in 50 days. If 10 more employees had participated, the work would be completed in 30 days. Find the ...
Anand is capable of finishing a task in 36 days when working solo. Akash, being 40% more efficient than Anand, can accomplish tasks quicker. Calculate h...
Relevant for Exams:
