A man travels a distance of 10 miles at 20 miles per hour and returns over the same route at 30 miles per hour. What is his average speed for the round trip in miles per hour?
Mr. Arif can complete a job in 15 minutes, while Mr. Asif takes twice as long to do the same job. If they work together, how many minutes will they require to complete the job?
If x
A = B
A < B
A > B
B < Y
A rectangular area of 16 meters by 12 meters, is surrounded by a road 3 meters wide. The area of the road is :
The width of a rectangular plot was reduced by 30% and the length was reduced by 10%. The size of the new plot is what percent of the original plot?
If one angle of a triangle is three times a second angle and the third is 20 degrees more than the second angle, the second angle, in degrees, is
If m men can paint a house in d days, how many days will it take m+2 men to paint the same house?
If 3x+2>2x+7, then x is
What percent of 700 is 2.1 ?
If the product of three consecutive integers is 720, then the sum of the two largest integers is -
Nafiza bought a ticket of a cricket match for Tk. 25 and later sold the ticket to Raida for Tk. 75. What was the percent increase in the price of the ticket?
Which of the following is the largest?
A is 3 years older than B and 3 years younger than C.B and D are twins How older is C than D?
If 89 and 125 is divided by a positive integer X, then the remainders are 4 and 6 respectively.
How many pieces of 85 cm length stick can be cut from a 42.5 meters long stick?
30
৪০
50
৬০
It costs Tk. 1000 to make the first thousand copies of a book and x taka to make each additional copies. If a total of 6000 copies were made with a total cost of Tk. 5500, what is X?
If x is 2/5 of y and y is 5/7 of z, what is the ratio of z : x?
A glass when full of milk, weighs 1 kg. It weighs 0.75 kg when the glass is half full. What is weight of the empty glass?
If 3 tailors can make 60 shirts per day, how many days will it take 6 tailors to make 120 shirts?
A man borrowed some money for 120 days. He asked the banker for the money and the banker charged Tk.360 as interest @6% per annum. What was the amount he borrowed?