Kalam bought two varieties of rice , costing Tk. 50 /kg and Tk. 60 /kg each , and mixed them in some ratio. Then he sold the mixture at Tk. 70/kg. Making a profit of 20% .What was the ratio of the mixture?-

In a class, 120 students are male and 100 students are female , 25% of the male students and 20% of the female...

is divisible by both 40 and 75 if a has exactly three distinct prime factors, which of the following could be...

There are 48 books on 3 shelves. If 3 books from third shelf are shifted to the second there will be same numb...

Arafat has TK. 420. He purchased fifty mangoes and thirty oranges with the whole amount. He then chose to retu...

Last year Jaman bought two lamps. This year he sold them for BDT 2000 each . On one lamp, he made 25% profit a...

If the average of 5 consecutive integers is 19 then what is the difference between the least and the greatest...