Related Questions

Rashed can stuff advertising circulars into envelopes at the rate of 45 envelopes per minute and Reena require a minute and a half to stuff the same number of envelopes. Working together, how long will it take Rashed and Reena to stuff 300 envelopes?
A 15 minutes
B 4 minutes
C 3minutes 30 seconds
D 3minutes 20 seconds
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
Mechanism of moisture removal in case of freeze drying of food stuff is by
A Evaporation
B Sublimation
C Dehydration
D Adsorption
‘We are such stuff as dreams are made on’, is from-
A Hamlet
B The Tempest
C As you like it
D Twelfth Night
For every novel in the library there are 2 science books, for each science book there are 7 economics books. Express the ratio of economics books to science books to novels in the library as a triple ratio.
A 7 : 2 : 1
B 7 : 1 : 2
C 14 : 7 : 2
D 14 : 2: 1
For every novel in the school library there are two science books, for each science book there are seven economice books. Express the ratio of economics books to science books to novels in the school library as a triple ratio.
A 7 : 2 : 1
B 7 : 1 : 2
C 14 : 7 : 2
D 14 : 2 : 1
For every novel in the library there are 2 science books; for each science book there are 7 economics books. Express the ratio of economics books to science books to novels in the library as a triple ratio.
A 7 : 2 : 1
B 7 : 1 : 2
C 14 : 2 : 1
D 14 : 1 : 2
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
Govt. Laboratory High School has 10 members in its chess team and 14 members in its science club. Five students at the school belong to both the chess team and the science club. How many students belong to only the chess team?
A 5
B 6
C 7
D 9
In a class of 50 students, 10 did not opt for math, 15 did not opt for science and 2 did not opt for either. How many students of the class opted for both math and science?
A 37
B 27
C 23
D 25

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