৪১৫১
You are looking at a billboard 40m away with an angle of slevation of 30°. At what height is the billboard?
উত্তর
20
৪১৫২
What is the probability of getting a sum of sis if two dices are thrown at once?
উত্তর
5/36
৪১৫৩
A ladder rests ageinst a wall that is perpendicular to the ground. If the bottom of the ladder is 4m away from the bottom of the wall, while the top of the ladder is at a height of 3m. What is the length of the ladder?
উত্তর
5m
৪১৫৪
In a room of 36 people,20 players play chese while 28 players play poker. How many players play both?
উত্তর
12
৪১৫৫
A fair six-sided dice is rolled. Find the probability of getting an add number or a number less than 4.
উত্তর
2/3
৪১৫৬
How many positive intergers less than ten thousand are multiples of both eight and eighteen?
উত্তর
138
৪১৫৭
The H.S.C and L.C.M of two numbers are 12 and 288 respectively. If one of the numbers in 96,fine the other.
উত্তর
36
৪১৫৮
The ratioof male students to female students in a class in 13 to 19. If there are 224 people in the class, including one teacher, one administrator and thirty evaluations. How many people in the class are male students?
উত্তর
78
৪১৫৯
5 years ago the ratio of father's age to son's age was 5:1 and 2 years later father's age will be 3 times his son's age. What is ratio of their present age?
উত্তর
10:3