Solve the following mathematical problems.

A fruit-salad mixture consists of apples, peaches, and grapes in the ratio 6:5:2 respectively by weight, If 39 pounds of the mixture is prepared , the mixture includes how many more pounds of apples than grapes?

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.