A floor is covered by 800 tiles measuring 10 cm square. How many square tiles of side 8 cm would be needed to cover the same floor?
The sides of two cubes differ by 2 cm and their volumes differ by 152 cm3 .What is the length of the side of the smaller one?
What is the area of a square picture whose border is 5 cm wide and 4/9 of the total area?
A stone ball is dropped into a barrel of water and sinks to the bottom. The ball is completely covered by water .By how much does the water rise in the barrel ?
The foot of a ladder is 2 m away from a vertical wall. The height of the top of the ladder is 12 m less than the length of the ladder. What is the length of the ladder?
Farid earns Tk 18/h as a gardener for a 30 hour week. His overtime rate is x/h. for a 36 hour week he earns TK. 660 . The value of x is
The sum of the squares of two consecutive integers is 145. The sum of the positive integers is
The foot of a ladder is 2 on away from a vertical wall. The height of the top of the ladder is 12m less than the length of the ladder. What is the length of the ladder?
Nina was 1.25 m tall. One year later she was 10% taller and in the nest year height increased a further 12% from her new height .What is her height after both increases?
What is the new salary of a person whose salary first increased by 10% and then decreased by 10% from Tk. 120000.
A group of friends share a bill for $ 1369 equally between them . How many were the group ?
The length of a rectangle is decreased by 25% and the breadth is increased by 40% .What percentage change in the area of rectangle ?
If TK. 100 is invested for 10 years at 5% compound interest , the total amount at the end of this period to the nearest take is -
A man walked 2 miles east, then 3 miles south , then again 2 miles east, and finally 10 miles north . Approximately how far did he walk form the starting point?
Department ores range form two to nine floors in height. If a store has more than three floors , it has a lift. If he statements above are true, which of the following must also be true?
A father is three times as old as his son. In 12 years time, he will be twice as old as his son. How old is the father now?
which of the following words fits best to hours, minutes and second ?
When a meeting of the liaison committee was over ,every member shook hands with one another and the total number of handshakes was 6. How many members were there in the meeting?
5C0+5C1+5C2+5C3+5C4+5C5=?
5x-5y3+2=0 এবং 3x3+3y-4=0 সরল রেখাদ্বয়ের অন্তর্ভূক্ত কোণ কত?