Advertisements
Advertisements
Question
The cost of an article is ₹3 more than twice the total number of articles. If the cost of all the articles is ₹189, then the number of articles is ______.
Options
7
9
11
13
MCQ
Fill in the Blanks
Advertisements
Solution
The cost of an article is ₹3 more than twice the total number of articles. If the cost of all the articles is ₹189, then the number of articles is 9.
Explanation:
If there are 9 articles, each costs ₹(2 × 9 + 3) = ₹21 and the total is 9 × ₹21 = ₹189. The other numbers do not satisfy the stated cost rule and total.
shaalaa.com
Is there an error in this question or solution?
