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1. The cost price of a table and a chair together is TK. 690. If the table costs 30% more than the chair, then find the cost price of the table and the chair respectively.
- A. TK. 300 and Tk. 390
- B. TK. 300 and Tk. 390
- C. TK. 300 and Tk. 390
- D. TK. 300 and Tk. 390
Answer: Option A
Explanation:
ধরি, চেয়ারের ক্রয়মূল্য = x
টেবিলের ক্রয়মূল্য = x + 30% of x
প্রশ্নমতে, x + x + 30% of x = 690
2x + x × 30/100 = 690
200x + 30x = 69000
230x = 69000
x = 300
টেবিলের ক্রয়মূল্য = 300 + 30% of 300 = 300 + 90 = 390 টাকা
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