What is the time span within which a caterpillar moults?
∙ In every 2-3 days the caterpillar sheds its skin. ∙ In its lifespan, the caterpillar sheds its skin 4 times.
3 men or 5 women can do a work in 12 days. How long will 6 men and 5 women take to do it?
(a) 6 days
(b) 5 days
(c) 4 days
(d) 3 days
3 persons can build a wall in 4 days, then 4 persons can build it in
(a) 513days (b) 3 days
(c) 413days (d) none of these
What is the time period of approximately 270 days, during which the foetus develops within the uterus, called?
A can do 12 of a work in 5 days. B can do 35 of the same work in 9 days and C can do 23 of that work in 8 days. In how many days can three of them together do the work?