A fair coin is flipped three times. What is the probality that coin lands head each time?
22+3=
The solution of equation x-2y=4 is:
In triangle ABC, If Ab= BC and ∠B=70°, ∠A will be
A boat sailing against a stream of river takes 6 hours to travel 24 kms while sailing with thestream it takes 4 hours to travel the same distance. What is the speed o fthe stream?
The hypotenuse of a right triangle is 2 centimeters more than longer side of the traiangle is 7 centimeters less than the longer side. Find the length of the hypotenuse.
The price of raw meterials had gone up by 15% labor cost has also increased from 25% of the cost of ras material to 30% of the cost of raw material. By how much percentage should there be reduction in the usage of raw materials so as to keep the cost same?
The number of student in 3 classes is in the ratio 2:3:4 if 12 students are increased in each class this ratio changes to 8:11:14. The total number of students in the three classes in the beginning in the three classes in the beginning was:
Two buses start from a bus terminal with speed of 20 km/h at interval of 10 minutes. What si the speed of a man coming from the opposite direction towards the bus terminal if he meets thebuses at interval of 8 minutes?
The surface area of hollow cylinder with radius 'r and height 'h' is measured by-
The diameter of the base of a cone is 10.5 c,. and its slant height is 10 cm. The curved surface ares is:
The three rational numbes between 3 ans 4 are:
A, B and C enter into partnership with investment in the ration of 5:7:8. If at the end of the year A's share of profit is Tk. 42360,how much is the total profit?
One doxen eggs and ten pound of apple are currrently of same price. If the price of a dozen agges rises by 10% and that of apples rises by 2%, how much more will it cost to buy a dozen of eggs and ten punds of apples?
Equal amounts of water were proured into two empty jars of different capacities, which made one jar 1/4 full and the other jar 1/3 full . If the water in the with the lesser capacity is then poured into the jar the greater capacity, What fraction of the larger jar will be filled with water?
M men agreed to prchase a gift for Tk D. If 3 men drop out, How much more will each have to contribute toward the purchase of the gidt?
If x2+9x2=31, what is the value of x-3x?
How many positive integers less than 100 are neithe multiples of 2 or 3.
The volume of a rectangle with length. breadth, and height as 5x,3x2and 7x4
What is the length of Bangabandhu Tunnel?
An iron rod that weight 24 kg is cut is cut into two pieces so that one of these pieces weight 16 kg and is 34 m long. If the weight of each piece is proportional to its length, how longis the other piece?
If x=7-43 then find value of (x+1x)?
By elling a bicyle for Tk. 2850, as shopkeeper gains 14%. If profit is reduced to 8%, then the selling price will be:
In a certain class consisting of 36 students , some boys and some girls exactly 1/3 of the boys and exactly 1/4 of the girl walk to school. what is the greatest class who walk to school?
A sum of miney amounts to Tk 9800 after 5 years and Tk. 12005. after 8 years at the same rate of simple interest. The rate of interest per annum is.
One third of the Faculty membes of a department are female. Sixteen of the male teachers are unmarried. While 60% of them are married, The total number of faculty members in the department is-
A certain class is divided into two section A and B of equal numbr of students. If the ratio of girls to buys for whole class is 3/5 and the ration of girls to boys in section A is 5/7. What is the ratio o fgirls to biys in section B?
Given that 12+22+32.....+102=385, what is the value of 32+62+92+.....302?