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Bonds Telecom sold 140 SIM cards for Tk. 250 each, 120 SIM cards for Tk. 215 each and 50 SIM cards for Tk. 200 each. If each SIM card costs Tk. 220, what is the profit ?

An athlete running at 24 km/hr crosses a square field diagonally in 3 minutes. What is the area of the field?

If w = 4x, 12y = 8x, 6y = 2z and 9v = 6z then what is the value of \’ w \’ in terms of \’ v \’?

In a school, 80% students passed in Bangla and 65% passed in Science. If 50% of the students have passed both the subjects, what percent of the students ?

The average daily income of Mr. A and Mr. B is Tk. 350, of Mr. B and Mr. C is Tk. 365, and of Mr. A and Mr. C is tk. 340. What is the weekly income of Mr. A

A retailer buys a Panjabi and a Fatua jointly at Tk. 500. If he sells the Fatua at 10% profit and the Panjabi at 5% loss, then he gets Tk. 520 as total?

Mr. Jamal employed 50 workers to finish a work within 30 days. After 20 days he found out that only 50% work had been completed. How many additional workers work to finish ?

A container full of water weighs 18.5 kg. If one-fourth of the container is full of water, it weighs 6.5 kg. What is the weight of the empty container

If the length of a rectangle is 8cm and its diagonal is 10cm, find its area.

Area of a square field is 484 square meter, find its perimeter.