On a street with 25 house , 10 house have fewer than 6 rooms , 10 houses have more than 7 rooms and 5 houses have more than 8 rooms . What is the total number of hoses on the street that are either 6,7 or 8 room houses?

A 10
B 15
C 19
D 11

Correct Answer: 15

Bissoy MCQ
#উচ্চতর গণিত #সমতলে বস্তুকণার গতি (Motion of particles in a plane) #G ইউনিট #জাহাঙ্গীরনগর বিশ্ববিদ্যালয়

Related Questions

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B 14
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The number of rooms at Hotel G is 10 less than twice the number of rooms at Hotel 11. If the total number of rooms at Hotel G and Hotel H is 425 , what is the number of rooms at Hotel G?
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করিম ও রহিমের নম্বরের অনুপাত ৩ঃ৪ এবং রহিম ও মোহনের নম্বরের অনুপাত ৬ঃ৭ হলে করিম ও মোহনের নম্বরের অনুপাত কত?
A ৪ : ৭
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The popular notion that a tree's age can be determined by counting number of internal rings in its trunk is generally true. Howeevr, to help regulate the internal temperature of the tree, the outermost layers of wood of the Brazilian ash often →peel away when the temperature exceeds 95 degrees Fahrenheit, leaving the tree with fewer rings than it would otherwise have. So only if the temperature in the Brazilian ash's environment never exceeds 95 degrees Fahrenheit →elav eing the tree with fewer rings than it would otherwise have. So only if the reliable measure of the tree's age. Which of the following is an assumption on whish the argument above depends?
A The growth of new rings in a trees is not a function of levels of precipitation.
B Only the Brazilaian ash loses rings because of excessive heat.
C One day of temperatures above 95 degrees Fahrenheit will cause the Brazilian ash to lose one ring.
D The internal rings of all tress are of uniform thickness
The charge of a room at Sheraton is 25% less than that of a room at Westin and 10% less than that of a room at Sonargaon . By what percent is the charge of a room at Westin is greater than that of Sonargaon ?
A 15%
B 17%
C 19%
D 20%
There are tow examinations rooms A and B. If 10 students are sent from A to B, then the number of students in each room is the same . If 20 candidates are sent from B to A, then the number of students in a is double the number of students in B. what is the number of students in room A?
A 20
B 80
C 100
D 200
There are two examination rooms, A and B, If 10 students are sent from A to B, then the number of students in each room is the same . If 20 students in A is double the number of students in B. The number of students in room A is:
A 20
B 50
C 80
D 100
Four friends A, B, C and D live in a same locality. The house of B is in the east of A's house but in the north of C's house. The house of C is in the west of D's house. D's house is in which direction of A's house?
A South-East
B North-East
C East
D Data is inadequate
Streets A, B, and C are straight and level, and they intersect to form a triangle. If streets A and B intersect at a 60 degree angle and if street C is perpendicular to street B, at what acute angle do street A and C intersect?
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One of the biggest threats to a company’s porductivity is absenteeism. Student show that companies with in-house child-care programs see fewer absences among their employees who are parents than companies without such programs. Therefore, many companies could boost their productivity by starting in-house child-care programs. Which of the followings, if true, most weakens the above argument?
A In-house child-care programs create distractions for nonparents that can harm their productivity.
B Absenteeism is not a serious problem for companies that impose harsh penalties on employees who miss work.
C Productivity is not an important issue for the companies.
D studies have shown that employees with children are more likely than those without children to remain in the same job for more than five years.

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