The price per pair of brand X socks is BDT 20 and the price per pair of brand Y socks is BDT 30. If there is no sales tax and a customer chooses only from among these two brands, what is the greatest number of pairs of socks that he can buy for exactly BDT 450?
A 9
B 22
C 11
D 12
Solution
Correct Answer: Option C
অ্যাপ/ওয়েবসাইটে রুটিনভিত্তিক নিয়মিত লাইভ পরীক্ষা হচ্ছে।