Which of the following statements are of inverse variation ?
1 Number of women clearing a patch of land and time taken by them to clear the land .
2 Number of buckets of same size used to empty a tank and time taken to empty the tank .
3 Number of students planting saplings in a tree plantation drive and area of land planted in an hour .
4 Number of bottles of one litre filled by a tap and time required to fill all the bottles .
Answers
Answer:
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Step-by-step explanation:
THIS little work is designed to aid teachers who are using
the Fourteen Weeks Course. The problems contained in
all the books are fully, and, it is thought, accurately solved.
Great pains have been taken to revise and compare them
carefully. The practical questions are answered, often not
in full, yet enough so to give the key to the more perfect
reply. The use of the text-books is presupposed, and the
statements merely supplement, or apply the fuller theories
therein contained and explained. On many points there
may be a difference of opinion. The author often finds in
his own classes a wide diversity. On mooted questions he
has merely advanced one view, leaving the subject open
for the discussion of other theories. Minute directions are
given, pages 71-82 inclusive, for performing a course of
experiments in Chemistry. It is hoped that these may be
of service to teachers who, with incomplete appadatus, are
trying to illustrate to their pupils some of the principles of
that science. In all cases of doubt or misunderstanding
with regard to the answers or solutions, the author will be
pleased to correspond with any teacher using the Series