Question
A hemisphere bowl of internal radius 15cm contains a
liquid. The liquid is to be filted into cylindrical shaped bottles of diameter 5cm and height 6cm. the number of bottles required to empty the bowl is.Solution
Solution-        R =15cm, r= 5/2cm, h =6cm Volume of hemispherical bowl = (2/3) πR3 volume of hemispherical bowl =Numbers of bottles ×volume of 1 bottle (2/3) πR3 = N × πr2h N = (2/3) πR3 / πr2h = [(2/3) ×15×15×15] / [(5/2) × (5/2) ×6] N= 60
A and B together can finish a work in 10 days. If A alone can finish it in 25 days, in how many days can B alone finish it?
A man, a woman and a boy can do a work in 4, 8, 16 days respectively. How many boys were required with 1 man and 1 woman to complete the same work in 1/...
A man is thrice as fast as a women and a woman is twice as fast as a boy. If all of them can do a work in 18 days. than a boy can do the work in?
x men can finish a work in y days. 0.9x women can finish 1/3rd of the same work in (y - 8) days. If 0.8x women can complete 1/3rd work in 36 days. Find ...
'Ramesh' can complete a work in 40 days. He started the work and left after 24 days from starting. The remaining work was done by 'Suresh' in 30 days. F...
A and B finish a job together in 36 days, while B and C together finish it in 48 days. The trio completes 75% of the job in 18 days. In how many days wi...
There is enough food in a camp to last for 50 days if each of the 40 soldiers present at the camp eat 2 times a day. After 20 days, 40 more soldiers jo...
- Suppose D, E and F can do a piece of work individually in 18, 27 and 36 days respectively. If they combine and work for 4 days, what percentage of work wou...
- A builder employed 12 workers to complete a job in 18 days. But after 8 days, 4 workers quit. How many more days will be required to complete the remaining...
Twenty laborers can complete a piece of work in 12 days. If 20 laborers started working and after 3 more days, additional laborers joined to complete th...