Discuss Forum
1. Halim purchased brand A pen for Taka 200 each and brand B per for Taka 100 each. If he purchased a total of 8 of these pens for Taka 1,200 how many pens of brand A did he purchased ?
- A. 3
- B. 3
- C. 3
- D. 3
Answer: Option B
Explanation:
ধরি, A brand এর কলম সংখ্যা x টি
B brand এর কলম সংখ্যা ( 8 - x) টি
200x + ( 8 - x) × 100 = 1200
200x + 800 - 100x = 1200
100x = 1200 - 800
x = 400/100
x = 4
Post your comments here: