১৪৪৭২
The area of a rectangular R with width 4 feet is equal to the area of square S which has a perimeter of 24 feet. The perimeter of the rectangular R, in feet, is:
উত্তর
26
১৪৪৭৪
A boat sails m miles upstream at r miles/hr. If the speed of the stream is s miles/hr, how long will it take the boat to return to its starting point?
উত্তর
m/(r + 2s)
১৪৪৭৫
A wheel rotates 10 times per minute and moves 20 feet during each rotation, How many feet does the wheel move in 1 hour.
উত্তর
12,000
১৪৪৭৬
If x is doubled and y is tripled in the expression z = (4x/y), then the value of z is _____.
উত্তর
Multiplied by a factor 2/3
১৪৪৭৭
A petrol tank that is 1/2 full has 8 gallons petrol removed. The tank is then 1/10 full. What is the capacity, in gallons of the tank?
উত্তর
20
১৪৪৭৮
There are 45 students in a certain class 2/3 of the students are girls and 1/2 of the girls are blue-eyed. How many blue- eyed girls are there in the class?
উত্তর
15
১৪৪৭৯
Out of the 30000 tickets for the cricket tournament Dhaka, 1/4 were sold at Tk. 300, 1/3 were sold at Tk. 250 and the rest were sold for Tk. 125. How many tickets were sold at Tk. 125?
উত্তর
12500
১৪৪৮০
In group of 15 high school students, 7 study Latin, 8 study French and 3 study neither latin nor French. How many students study both Latin and French.
উত্তর
15