Solve the following mathematical problems.

A man deposited Tk, 5000 with a bank that pays interest at the rate of 5% per annul even –six month. The man will withdraw Tk 500 from his principal plus any interest accrued at each six – month period. How much total interest can expect to receive?

একটি সমকোণী ত্রিভুজের সমকোণ সংলগ্ন বাহু দুটির দৈর্ঘ্য ৬ সেঃ মিঃ এবং ৮ সেঃ মিঃ হলে এর ক্ষেত্রফল নির্ণয় করুন।

শতকরা বার্ষিক ৭ টাকা মুনাফায় ৬৫০ টাকার ৬ বছরের মুনাফা কত?

Solve the following mathematical problems:

The sum of three numbers in Arithmetic Progression is 30, and the sum of their square 318.Find the numbers.

Solve the following mathematical problems:

Among 50 people, 35 can speak English, 25 can speak both English and Bangla and each can speak at least in one of the two languages. How many of them can speak only Bangla?

Solve the following mathematical problems:

Length of each equal side of an isosceles triangle is 10cm and the included angle between those two sides is 45°. Find the area of the triangle.