Below is an instruction that describes a task. Write a response that appropriately completes the request in Bengali. Please answer in Bengali.

### Instruction:
 June has $500 for buying school supplies for the new school year. She buys four maths books at $20 each, six more science books than maths books at $10 each, and twice as many art books as maths books at $20 each. If she also bought music books, how much money did she spend on music books?


### Response:
 জুন একটি 120 পৃষ্ঠার বই পড়ছে। গতকাল, সে 12 পৃষ্ঠা পড়তে সক্ষম হয়েছিল এবং আজ, সে গতকালের চেয়ে দ্বিগুণ পৃষ্ঠা পড়েছে। সে যদি আগামীকাল বাকি পৃষ্ঠার অর্ধেক পড়তে চায়, তাহলে তাকে কত পৃষ্ঠা পড়তে হবে?