A box contains 200 marbels, 25% of which are of black colour. Babu took some marbels from the box and found that 30% of them are black of remaining marbels, 10% were black marbels. How many marbels did Babu take?
A 120
B 125
C 150
D 180
Solution
Correct Answer: Option C
অ্যাপ/ওয়েবসাইটে রুটিনভিত্তিক নিয়মিত লাইভ পরীক্ষা হচ্ছে।