Question 1: Which of the following statements are true?
Answer:
Hence True.
Hence True
Hence True
Hence True.
Q.2. Check whether the following numbers are in proportion or not:
Answer:
We have:
Therefore
We have
Therefore
.
We have
Therefore
We have:
Therefore
We have:
Therefore
Q.3. Find the value of x in each of the following:
Answer:
Q.4. Find the fourth proportional to:
Answer:
Let the fourth proportional term be
Let the fourth proportional term be
Let the fourth proportional term be
Let the fourth proportional term be
Q.5. Find the third proportional to:
Answer:
Then,
Q.6. Find the mean proportional between:
Answer:
Q.7. If is the third proportional to
, find the value of
Answer:
Q.8. If are in continued proportion, find the value of
Answer:
Q.9. A rod was cut into two pieces in the ratio . If the length of the smaller piece was
, then find the length of the longer piece.
Answer:
Q.10. The areas of two rectangular fields are in the ratio . Find the area of the smaller field if that of the larger field is
sq. meters.
Answer:
Q.11. What number must be subtracted from each of the numbers so that the differences are proportional?
Answer:
Let the number to be subtracted
Therefore
solving for
Q.12. An alloy is to contain copper and zinc in the ratio . Find the quantity of zinc to be melted with
kg of copper, to get the desired alloy.
Answer:
Let the quantity of zinc be
Very nice explaintatio
It help me alot.