The rate of a piece of gift paper is Rs.0.40 per paper. How many pieces of paper can we purchase for Rs.78.40?
1 answer:
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Given:
Consider the below figure attached with this question.
The table represents a proportional relationship.
To find:
The missing value from the table.
Solution:
If y is proportional to x, then
...(i)
Where, k is a constant of proportionality.
The relationship passes through the point (-3,-1). Substituting in (i), we get
Putting in (i), we get
...(ii)
We need to find the y-value for .
Substituting in (ii), we get
Therefore, the missing value in the table is -4. Hence, option D is correct.
