A man earned Tk. 5000 from interest and wages . If he doubles his investment and also gets 50% increased wages before, his earning will stand to Tk. 8,000 Determine the original income of the man both in terms of interest ans wages.
The sum of three numbers in Arithmetic Progression is 30, and the sum of their square 318.Find the numbers.
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?
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.