The sale price of an article including the sales tax is Tk. 616. The rate of sales tax is 10%. If the shopkeepers has made a profit of 12%, then the cost price of the article is :

A person crosses a 600m long street in 5 minutes. What is his speed in km per hour ?

The average of 20 numbers is zero. Of them, at the most, how many may be greater than zero ?

What will be the compound interest on a sum of Tk. 25000 after 3 years at the rate of 12 p.c.p.a. ?

In a school, 10% of the boys are some in number as 1/4th of the girls. What is the ratio of boys to girls in t...

If a number is decreased by 4 and divided by 6, the result is 8. What would be the result if 2 is subtracted f...

A 70cm long wire is to be cut into two pieces such that one piece will be 2/5 as long as the other. How many c...