Subject: General Aptitude · Chapter: Average · Exam: 2005 · Marks: · Difficulty:
13 chairs and 5 tables were bought for ₹ 8280. If the average cost of a table be ₹ 1227, what is the average cost of a chair? (S.S.C., 2005)
Answer
Answer (as printed):
Explanation
Total cost of 5 tables $=₹(1227 \times 5)=₹ 6135$. Total cost of 13 chairs $=₹(8280-6135)=₹ 2145$. $$\text { ∴ Average cost of a chair }=₹\left(\frac{2145}{13}\right)=₹ 165 .$$
Explanation as extracted from the printed page; notation may be imperfect.