৯, ৩৬, ৮১, ১৪৪ ......... এর পরবর্তী সংখ্যাটি কত?
If the product of 3 different positive integers is 6, then twice the sum of the integers is ----
The ratio of boys to girls in a class 2/5. If 2 boys leave and 4 girls join the class, the ratio of the boys to the girls becomes 1/4. Originally, how many girls were in the class?
If a number is divisible by 102 then it is also divisible by which of the following number?
A typist can type 125 pages, 36 lines cach, 11 words in each line in 5 days. How many pages of 30 lines each and 12 words to each line can he type in 6 days?
The number of flights leaving a certain airport doubles during every one-hour period between its 9 am opening and noon; afternoon, the number of flights leaving from the airport doubles during every two-hour period. If 4 flights left from the airport between 9 am and 10 am, how many flights left the airport between 2 pm and 4 pm?
132
১২০
৬০
২৩
None of these
If 15% of 40 is greater than 25% of a number by 2, then the number is-
Three pipes P, Q and R can fill a tank in 6 hours. After running all three together for 2 hours, R is closed and P and Q can fill the remaining part in 7 hours. The number of hours taken by R alone to fill the tank is ---
M is a girl and has the same number of brothers as sisters. N is a boy and has twice as many sisters as brothers, M and N are the children of Q. How many children does Q have?
At present the total age of Rahim, Karim and Akkas is 81 years. what was their average age three years ago?
A woman says, "If you reverse my own age , the figures represent my husband's age. He is senior to me and the difference between our ages is one-eleventh of their sum." What is her age now?
The greatest number that exactly divides 105, 1001 and 2436 is :
The difference between the local value and the face value of 7 in the numeral 32675149 is
0.014*0.014=?
The ratio between the length and the perimeter of a rectangular plot is 1:3. What is the ratio between the length and breadth of the plot?
100*10-100+2000/100=?
A man can do a job in 15 days. His father takes 20 days and his son finished it in 25 days. How long will they take to complete the job if they all work together?
A shopkeeper combined X liters of a solution containing 10% of certain material Q, with 10 liters of another solution that contained 2% of that materiale Q, to produce Z liters of a solution that had 5% of Q. What is the value of X?
Arafat and Asif were each paid X taka in advance to do a certain job together. Arafat worked on he job for 10 hours and Asif worked 2 hours less than Arafat. If Asif gave Arafat Y taka of his payment so that they would have received the same hourly wage, what was the amount in taka, in terms of Y, that Arafat was paid in advance?