How many times does the digit '4' come to write numbers from 1 to 100?
Which of the following is the next number in the series : 2, 4, 3, 9, 4, 16, 5, 25, 6,-------?
A wristwatch was sold at 10% profit. If the cost was 15% less and the selling price was Tk. 20 less, then the trader would have made a profit of 20%. What was the cost of the wristwatch?
In a book store, the sales of a book decreased by 80% from 2007 to 2008. If the sales in 2009 were the same as in 2007, would be the percentage increase in sales from 2008 to 2009?
Robin has 4 times as many marbles as Azad has and 5 times as many as Kalam has. If Kalam has more than 40 marbles, what is the least number of marbles Robin could have?
If x is a positive number, 500% of x is what percent of 500x?
How much longer is required to drive one mile at 60 miles/hour than at 100 miles/hour?
During a sale, a salesperson was putting a new price tag on each item. On one shirt, he accidentally raised the price by 15% instead of lowering the price by 15%. As a result the price on the tag was Tk. 60 higher than the price that would have been the discounted price. What was the original price of the shirt?
Tk. 9,000 is divided among Abu, Rabu, Babu and Habu by 1 : 2 : 3 : 4 ratio. How much money do Rabu and Habu have together?
Babul attended five tests during the semester and the average of his test scores was 87. If has average score after first three tests were 85, what was the average of his 4th and 5th test?
What is the value of (x+2) (x-3) -(x+5) (x-6)?
In a lottery, 5% of the tickets printed can be redeemed for prizes, and 5% of those tickets have values in excess of Tk. 50. If 6,000 tickets were printed, how many of them can be redeemed for more than Tk. 50?
The average age of 15 people is 25 years. Out of them, total age of 2 people is 115 years. What is the average age of the other 13 people?
Since 1965 Mr. Ajmal has gained 2 pounds every year. In 1995 he was 40% heavier than what he was in 1965. What percent of his weight in 2010 was his weight in 1995?
The number of stamps in Ziko's collection is 75% of the number in Pallab's collection. If Pallab has 80 more stamps than Ziko, how many stamps do they have altogether?
The length of a rectangle is 6 feet more than the side of a square and the width of the rectangle is 6 feet less than the side of that square. If the area of the square is 64 sq feet, what is the area of the rectangle?
Rabeya purchased a TV costing Tk. 10,000 and sold it to Sakib at 10% profit. Later Sakib sold the TV back to Rabeya at 10% loss. How much profit Rabeya made in total from both these transactions?
In a business Raj invested Tk. 700 for 5 months. Rafi invested Tk. 500 for 6 months and Rabi invested Tk. 300 for 8 months. If total profit was Tk. 445, how much money will Raj get as his share of profit?
If the annual interest rate decreases from 4% to 3.75%, income of a person reduces by Tk. 60. What is his principal?
Seven friends are having lunch together in a fast food shop. Each of them east at least 3/5th of a pizza. What is the smallest number of whole pizzas needed for their lunch?
20 workers can finish a task in 30 days. How many additional workers are needed to finish the same task in 25 days?
A class of 120 has 25% girls. If 10% of the boys and 20% of the girls attended a picnic then what percentage of the class attended the picnic?
At a fashion house, shirts are sold for 25% less than the tag price. If a shirt costs Tk. 144, what will be the tag price to make a 25% profit on its cost?
Increasing the original price of an item by 20% and then decreasing the price by 20% is equivalent to which of the following?
If -8≤x≤8and ≤y≤14, what is the greatest possible value of (y-x)?
If 14 farmers can plough a field in three hours, how long will it take 15 farmers to do the same job?
Total price of a shirt and a pant is Tk. 850. If the price of the shirt increases by 12% and the pant by 5% then the total price become Tk. 934.50. What was the original price of the shirt before price increment?