৭১১১
What is the slope of a line perpendicular to the line whose equation is 3x + 4y = 8?
উত্তর
4/3
৭১১২
At what rate of compound interest per annum will a sum of Tk. 2500 become Tk. 3600 in 2 years?
উত্তর
20%
৭১১৩
All possible three-digit numbers are formed by the digits 1, 2, 3, 5, 6 (without repetition). If one number is chosen randomly, what is the probability that it is divisible by 5?
উত্তর
1/5
৭১১৪
The sum of the ages of a father and his son is 45 years. Five years ago, the product of their ages was 4 times the father's age at that time. What are the present ages of the father and son?
উত্তর
9, 36
৭১১৬
f the difference between the circumference and diameter of a circle is 120 cm, then the radius of the circle is:
উত্তর
28 cm
৭১১৭
What is the angle between the hour and minute hand of a clock when it is 7 : 20 pm? 130°
উত্তর
100°
৭১১৮
The volume of a sphere is the same as the volume of a right circular cylinder whose radius is 4 cm and height is 18 cm. What is the radius of the sphere?
উত্তর
6 cm
৭১২০
একটি চাকার ব্যাস ৪.২ মিটার। চাকাটি ৩৩০ মিটার পথ অতিক্রম করতে কত বার ঘুরবে?
উত্তর
২৫ বার