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?
The area of the floor of an auditorium is 600 sq. meter. How many unbroken tiles of dimension 10 x 30 cm³ will be required to cover the floor completely?
The average daily wage of 10 workers is Tk. 400 If the lowest wage is Tk.300, then what is the possible maximum wage?
Ruby's height is 5'2". Ana is taller than Ruby but she is not taller than Pamela. Pamela is shorter than her cousin Rony but she is not shorter than Ruby. Who is the tallest in the group?
A clock seen through a mirror, shows quarter past three. What is the correct time shown by the clock?
If xy=13 then the value of (x2+y2)/(x2-y2) is-
What is the total sum of all the interior angles of a parallelogram?
The diameter of the driving wheel of a bus is 140 cm. How many revolutions per minute must the wheel make in order to keep a speed of 66 km per hour?
The perimeter of a rectangle is 20cm. If the length of the rectangle is 6cm, then its breadth will be.
A man needs money for 120 days. He asked the banker for a loan and the banker charged Tk. 360 @ 6% per annum. What is the amount of loan?
The average monthly income of P and Q is Tk.5050. The average monthly income of Q and R is Tk.6250 and the average monthly income of P and R is Tk.5200. Calculate the monthly income of P.
The present ratio of students to teachers at a certain school is 30 to 1. If the number of students were to increase by 50 and that of teachers were to increase by 5, the ratio of students to teachers would then be 25 to 1. What is the present number of teachers?
A worker was hired for 7 days. Each day, he was paid Tk. 10 more than what he was paid for the previous day of work. The total amount he was paid in the first 4 days of work equaled the total amount he was paid in the last 3 days. What was his starting pay?
A man sells 2 commodities for Tk. 4000 each, neither losing nor gaining in the deal. If he sold one commodity at a gain 25% then what is the cost price of another commodity?
Find the number of zeroes in 10 x 20 x 30x……x 1000.
The total number obtained by a student in Physics, Chemistry and Mathematics together is 120 more than the marks obtained by him in Chemistry. What is the average mark obtained by him in Physics and Mathematics together?
In a factory, there are workers, executives and clerks. 58% of the employees are workers, 660 are executives and the remaining 264 employees are clerks. How many employees are there in the factory?
Salam earns Tk. 8.50 per hour on days other than Friday and twice the rate on Friday. Last week he worked a total of 50 hours including 8 hours on Friday. What is his earning for the week?
A train 240 m long passes a pole in 24 seconds. How long will it take to pass a platform 650 m long?
In a class, 120 students are male and 100 students are female. 25% of male students and 20% of female students are engineering students. 20% of the male engineering students and 25% of the female engineering students passed the final exam. What percentage of engineering students passed the exam?