৯৯৪৮
In a store, pens are sold for 25% less than the tag price. If a pen costs Tk. 48, what will be the tag price of the pen to make a 25% profit on its cost?
উত্তর
80
৯৯৪৯
A train traveled p kms in 40 minutes and completed the remaining 200 kms of the trip in q minutes. What was its average speed, in km per hour for the entire trip?
উত্তর
60 ( p +200)/(40 + q)
৯৯৫০
In an essay competition, a winner gets a prize of Tk 100 and a participant who does not win gets a prize of Tk 25. The total prize money distributed is Tk 3,000. Find the number of winners, if the total number of participants is 63.
উত্তর
19