Related Questions

In a class of 60 students, 20 students like Math, 25 students like English and 30 students like Science. If 5 Students like both Math and Science, 8 Students like both English and Science and 3 students like neither of these subjects, how many students like all of the three subjects?
A 2
B 3
C 4
D 5
In areas where rainy season is limited to a few months, the type of sewerage system recommended is
A Combined system
B Partially separate system
C Separate system
D None of these
Sewerage system is usually designed for
A 10 years
B 25 years
C 50 years
D 75 years
Sewerage system is designed for
A Maximum flow only
B Minimum flow only
C Average flow only
D Maximum and minimum flow
The most efficient cross section of sewers in a separate sewerage system is
A Parabolic
B Circular
C Rectangular
D New egged
The most efficient cross-section of sewers in a combined sewerage system is
A Parabolic
B Circular
C Rectangular
D New egged
The water carried sewerage system removes
A Domestic sewage
B Industrial sewage
C Storm sewage
D All the above
The sewerage system originates from
A House sewers
B Lateral sewers
C Branch sewers
D Main sewers
A,B,C,D,E,G and I are seven friends who study in three different standards namely 5th, 6th and 7th such that not less than two friends study in the same standard. Each friend also has a different favorite subject namely History, Civics, English, Bangla, Science , Maths , and Economics but not necessarily in the same order. A likes Maths and studies in the 5th standard with only one other friend who likes Bangla. I studies with tow other friends . Both the friends who study with I like languages (Here languages include only Science , English and Bangla ) . D studies in the 6th standard with only one person and does not like Civics . E studies with only one friend . The one who likes history does not study in 5th or 6th standard . E does not like languages. C does not like English , Science or Civics. Which combination represents E's favorite subject and the standard in which he studies?
A Civics and 7th
B Economics and 5th
C Civics and 6th
D History and 7th
In a class, 60% of children like Mathematics, 45% like Science and 25% like both Mathematics and Science. What is the percentage of children who like at least one subject?
A 70%
B 80%
C 45%
D 55%

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