১২১৫২
In the picture area of the square ABCD is 196 square miles, O is the center of the circle. What will be the area of the circle in square miles?
উত্তর
49π
১২১৫৩
There are 3 circles A, B and C (C > B > A). Area of the circle A is 100 Square Inch and B is 50% of C and 200% of A. What is the area of C?
উত্তর
400 Sq Inch
১২১৫৪
A Company employs 15 persons, each working 44 hours a week. If 4 persons are absent, how many hours a week would the rest of the persons have to work to make up the time lost?
উত্তর
60
১২১৫৫
A boat goes 13 km upstream (against current) in 39 minutes. The speed of stream (current) is 3 km/hr. What is the speed of the boat in still water?
উত্তর
23km/hr
১২১৫৬
Mr. Tamal purchased stocks for Tk.1,500 and sold 2/3 of it after its value doubled. He sold the remaining stock at 5 times of its purchase price. What is the total profit?
উত্তর
Tk. 3,000
১২১৫৭
The daily rate for a hotel room having 4 beds is Tk. 390 for one person and X taka for each additional person. If 3 people take the room for one day and each pays Tk. 210 for the room, then what is the value of X?
উত্তর
120
১২১৫৮
An employee pays 3 workers X, Y and Z a total of Tk. 610 in a week. X is paid 125% of the amount Y is paid and 80% of the amount Z is paid. Hou much does X make a week?
উত্তর
Tk. 200
১২১৫৯
A trader dealing in pressure cookers reduced the price by 20% as a result of which his sale went up by 80%. What is the net effect of his sales income?
উত্তর
44% increase
১২১৬০
At present, father's age is 4 times more than that of his son. 6 years ago father's age was 10 times more than that of his son. What is the present age of father and son?
উত্তর
36 and 9 years