A jar contains white, red and green marbles in the ratios 2 : 3 : 5. Six more green marbles are added to the jars and then the ratio becomes 2 : 3 : 7. How many green marbles are there in the jar?

• ক 15
• খ 18
• গ 21 ✅ সঠিক উত্তর
• ঘ 24