If 4 years' interest of Principal tk.500 and 5 years interest of Principal Tk. 600 are Tk. 500 in total , what is the rate of interest ?
If x2-7x+12<0, then which of the following is true ?
The area of a square on a straight line is how many times that on its one- third ?
A two-digit number becomes five-sixth of itself when its digits are reversed . The two digits differ by one. What is the number ?
If x2-3x+1=0 ,what is the value of x2-1/x2?
30 men took a dip in a water tank 20m long and 15m broad on a religious day.If the aveage water displacement of water by a man is 2m3, then the rise in the water level in the tank will be --
What is the fourth proportional of 3,9 and 4?
which of the following is the ratio of the sides of a right angled triangle ?
What is the probability that product of two integers (not necessarily different integers ) randomly selected from the numbers 1 to 20, inclusive , is odd ?
In an examination 40% of the total candidates are female .40% of female candidates and 30% of male candidates pass in the exam.What is the overall percentage of passing ?
The length of a rectangular room is double of its breadth.If the area is 512 square inches , what is the perimeter ?
If Qr=23 ,what is the value of r+Qr-Q ?
The average weight of 6 persons of a group is 75 kg.If a person weighting 50 kg leaves the group, what will be the average weight of the group m?
Two chairs have been sold ,each for Tk. 3,600. On one 20% profit has been earned and on the other 20% loss has been incurred .What is total profit or loss ?
Monjur is 20 years older than Siad. However,5 years ago Monjur was twice as old as Siad.How old Monjur now ?
Mujahid can do a work in 8 days, while has colleagues Asad takes 12 days and Mithun takes 16 days to complete the same.Mujahid and Asad started the work and after few days Asad left the work keeping it incomplete. Rest of the work was completed by Mujahid and Mithun in 2 days.How long it took to complete the whole work?
If the integer x is divisible by 5 but not by 2, then which one of the following is never an integer ?
What is the smallest number that should be added to 100 so that it can be completely divided by all the prime numbers between 10 to 15 ?
5×4-6÷3+1=?
A certain river has a current of 4 miles per hour.A boat takes twice as long to travel upstream between two points as it does to travel downstream between the same two points . What is the speed of the boat in still water ?
In the triangle ABC, angle B is equal to angle C and D is a point on BC.Which of the following is true ?