Question
With reference to ecology, which among the following
correctly describes the Allen's rule?Solution
Allen's rule states that the mammals from colder climates generally have shorter ears and limbs to minimise heat loss.Â
If 14 men working 14 hours a day can make 14 quilts in 14 days, then in how many days 28 men working 28 hours per day will make 28 quilts?
P can do a piece of work in 25 days, Q can complete double the work in 40 days and R can do the work in 30 days. If all of them together earn Rs. 7400, ...
8 men working 6 hours a day can complete a piece of work in 6 days. If efficiency of each woman is 20% more than that of each man, then how many women w...
P can do a piece of work in 15 days, Q can complete double the work in 60 days and R can do the work in 40 days. If all of them together earn Rs. 3000, ...
A work can be completed by ‘A’ and ‘B’, alone in 14 days and 7 days, respectively. Find the number of days taken by ‘C’ to complete the same...
A, B and C can complete a work in 10, 20 and 15 days respectively. A left the work 3 days before the work was completed and B left 1 days after A had le...
'B' and 'C' in a team can complete a piece of work in 25 days and on other hand 'B' alone can do the same work in 40 days. If they started the work in...
A’ and ‘B’ together can complete a work in 25 days while ‘A’ takes 30 days to complete the same work alone. If ‘C’ is 20% more efficient t...
Ram can do a piece of work in 50 days. He alone worked at it for 20 days and then Lakshman completed alone the rest work in 30 days. In how many days, t...
'X' and 'Y' can complete a certain job together in 36 days. They worked together for 20 days, after which 'X' left, and 'Y' completed the remaining work...
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