Bissoy.com
Doctors Medicines MCQs Q&A

Average number of books of 4 subjects Maths, English, Hindi and Science in library P is 77. In library Q, there are 5 more English books and 23 more Science books than that of in library P. If the average of the total number of books of 4 subjects in library P and that in library Q is 348 then the library Q has how many more books of Hindi and Math than library P?

Average number of books of 4 subjects Maths, English, Hindi and Science in library P is 77. In library Q, there are 5 more English books and 23 more Science books than that of in library P. If the average of the total number of books of 4 subjects in library P and that in library Q is 348 then the library Q has how many more books of Hindi and Math than library P? Correct Answer 52

GIVEN:

Average number of books of 4 subjects Maths, English, Hindi and Science in library P is 77.

The average of the total number of books of 4 subjects in library P and that in library Q is 348.

CONCEPT:

Basic concept of Average.

FORMULA USED:

Average = Sum/Total numbers

CALCULATION:

Suppose the number of Math, English, Hindi, and Science books in library P are w, x, y, and z respectively.

⇒ Number of English books in library Q = (x + 5)

⇒ Number of Science books in library Q = (z + 23)

Suppose the number of Hindi and Math books in library Q is ‘a’ and ‘b’ respectively.

Now,

(w + x + y + z) = 77 × 4

⇒ (w + x + y + z) = 308      ----(i)

And

(x + 5 + z + 23 + a + b) + (w + x + y + z) = 348 × 2 = 696

From equation (i):

⇒ (x + 5 + z + 23 + a + b) + 308 = 696

⇒ (x + z + a + b) = 360     ----(ii)

Subtracting equation (i) from equation (ii):

⇒ (a + b) – (w + y) = 360 – 308 = 52

∴ There are 52 more Hindi and Math books in library Q than in library P.

Related Questions

In an examination, there were three subjects Hindi, Maths, and Science. Marks scored by Karan in Hindi is 60. Marks scored by Karan and Lokesh in Maths is equal. Marks scored in 3 subjects by Lokesh is 200. Marks scored by Lokesh in science is 25 % of total marks obtained. Marks scored by Mohit in Hindi is equal to marks scored by Lokesh in Maths. Marks scored in Maths by Mohit is 5 more than the marks scored in Hindi. Marks scored in Maths by Lokesh is 20 more than marks scored in Science. Marks obtained by Karan, Lokesh, and Mohit in Hindi are what percent of marks obtained by Karan, Lokesh, and Mohit in Maths?
There are 200 total students who like different subjects. Subjects available are Hindi, Mathematics, and English. Only Hindi is liked by 30 students, 50 students like all the subjects. 20 students like both Hindi and English subject, Math is liked by half of the student who like only Hindi subject. Only 35 students like both math and English and 10 students like only English subject. Based on the data find: How many students like math and Hindi both?
There are 200 total students who like different subjects. Subjects available are Hindi, Mathematics, and English. Only Hindi is liked by 30 students, 50 students like all the subjects. 20 students like both Hindi and English subject, Math is liked by half of the student who likes only Hindi subject. Only 35 students like both math and English and 10 students like only English subject. Based on the data found: How many students like English Subjects?
Ten books are arranged in a row following a certain sequence. Among them 3 are History , 3 are Economics, 2 are Maths and 2 are English. From the left, there is an English book between a History and Maths book, a history book between a Maths and an English book, an Economics book between an English and a Maths Book. a Maths book between two Economics books and two Economics two Economics book between a Maths and a History book. Book of which subject is at the sixth position from the left?
An examination consists of four sections viz. Maths, Science, English and Hindi. Certain number of students registered for the examination in which 12% did not appear for the examination and 8% of the total registered students were not able to clear any section. 12.5% of the appeared students cleared only Maths section, 25% of the appeared students cleared only Maths and Science section. 13% of the total registered students cleared only Maths, Science and English section. If the remaining students who appeared for the examination are 51 and cleared all the four sections, then what is the total number of students who appeared for the examination? (Note: No other case is possible other than given in the question) 
Vishal attempted yearly exams in his school, which included exams of five subjects - English, Hindi, Maths, History, and Science. It is known that every exam was of 100 marks. Vishal scored a total of 81% marks in the yearly exams. He scored a total of 90 marks in English. His maths' score was (2/3)rd the marks in English, and he scored (5/6)th of the marks he scored in English in his Hindi Exam. Also, the difference between the marks in History and Science is 10, where he scored more in Science. Find out the average of marks in Science and History, scored by Vishal.
Ten bools are arranged in a row following a certain sequence.Among them 3 History,3 are Economics, 2 are Math's and are English.From the left,There is English book between a History and Math's book, a History book between a Math's and an English book, an Economics book between an English and a Math's Book Math's book between two Economics books and two Economics book between Math's and a History book.Book of which subject is at the sixth position from the left?
A library contained books in Hindi, English and several regional languages, such that the average number of books per language are 525, while the average number of books per regional language are 225. If the total number of Hindi and English books in the library is 2100 more than the total number of books in the regional languages, find the number of regional languages in which books are kept in the library.
There are four friends Sharayn, Pinky, Tanisha and Mamta. Two study in J college. one each in X college and A college. Each one is definitely good at one subject and one is good at all the subjects. The subjects are English, Science, Maths and Computers. Of those studying in J college, one is good at Maths and the other in all subjects. Tanisha is studying in Acollege. Pinky is good at Maths. Sharayn is not good at Science. Find who is good at all the subjects.
Study the following table and answer the question: Percentage of marks obtained by six students A, B, C, D, E and F in five subjects. Subjects →  Students ↓  English (Out of 50) Math (Out of 150) Science (Out of 80) Hindi (Out of 75) Social Studies (Out of 100) A 70 90 65 64 88 B 84 92 75 68 49 C 66 80 85 80 84 D 62 74 75 88 60 E 54 64 55 72 85 F 72 84 65 60 65   The total marks obtained by student F in English, Science and Hindi is approximately what percent of the total marks obtained by student A in English, Mathematics, Science and Hindi? (Correct to one decimal place)