Question
Find the quotient, when the mean proportional of 7(1/2)
and 245 is divided by an even prime number.Solution
Convert 7(1/2) to improper fraction:
7(1/2) = 15/2
Mean proportional of 15/2 and 245 = √[(15/2) × 245]
= √[(15 × 245) / 2]
= √[3675 / 2]
= √1837.5
Now divide by the only even prime number, 2:
Quotient = (√1837.5) ÷ 2 = 21.4325
P, Q, and R can do a project individually in 10, 25, and 20 days. P and Q begin the project, but after 2 days, P is replaced by R. How many more days wi...
A alone can complete a work in 16 days and B alone in 12 days. Starting with A, they work on alternate days. In how many days, total work will be comple...
Team A can built a project in 6 hours less than the time taken by Team B to built the same project.
The ratio of the strength of Team A to that o...
- Two workers, A and B, can finish a task in 36 days and 48 days respectively, working alone. How many days will they take to complete the work together?
Aman finishes 2/5 of a task in 8 days, while Bhanu completes the entire task in 16 days. How long will it take for both Aman and Bhanu, working together...
18 women can do piece of work in 12 days. 12 men can do the same piece of work in 9 days. Find in how many days will 8 men and 8 women complete that work?
Reena and Teena together can do a piece of work in 60 days. Teena and Meena together can do it in 40 days. Reena starts the work and works on it for 10...
- The ratio of the efficiency of A, B and C is 3:4:5, if they can complete a work in 18 days then A can complete 60% of the work in how many days?
A work can be completed by ‘A’ and ‘B’, alone in 18 days and 10 days, respectively. Find the number of days taken by ‘C’ to complete the sam...
40 men can complete a piece of work in 24 days. All of them started the work together, after 6 days how much more men will be required to complete the s...
Relevant for Exams:
