What is the square root of 0.00000081 ?
What is the ninth term of the sequence 0, 3, 8, 15, 24, 35, ...................... ?
What is the wrong number in the following series : 1, 23, 144, 64, 49 ?
The sum of Rahim's age and his son's age is 55 years. 5 years ago Rahim's son was 29 years younger than Rahim. What is the son's present age ?
What is the value of (m+n)^2 - (m-n)^2 ?
50 minutes ago it was 45 minutes past 4 o'clock. How many minutes is it until six o'clock ?
On sports day, if 30 children were made to stand in a column, 16 columns could be formed. If 24 children were made a stand in a column, how many columns could be formed ?
The number of students in each section of a school is 24. After admitting new students, three new sections were started. Now the total number of sections is 16 and there are 21 students in each section. How many new students were admitted ?
1/4 of Ahsan's money is equal to 1/6 of Babu's money. If both together have Tk. 600, what is the difference between their amounts ?
The average of eight numbers is 14 and the average of six of these numbers is 16. What is the average of the remaining two numbers ?
The average age of 30 students is 10 years and that of another group of 5 of them is 14 years. What is the average age of the remaining students ?
If the two sides of a triangle are 5 and 6, the third side cannot be .............
The population of a country doubled every 10 years from 1980 to 2010. What was the percent increase in population during the period ?
How much interest will Tk 2000 earn at an annual rate of 10% in one year if interest is compounded every 6 months ?
A company employs 15 persons working 44 hours a week. If 4 persons are ill, how many hours a week would the rest have to work to make up the work force lost ?
What is the smallest number exactly divisible by each of 12, 15, 20 and 27 ?
The sum of two numbers is 146 and difference between them is 18. What are the numbers ?