Explanation : (A) Number of boys and girls are 7x and 8x respectively.
(B) Average age of boys = 12.2 years.
Average age of girls = 11.4 years.
(C) Number of girl- Number of boy = 2
From (A) and (C)
8x - 7x = 2 ⇒ x = 2.
∴ Number of boys = 7x = 14
Number of girls = 8x = 16
From (B), Sum of age of all boys.
= 12.2 x 14 = 170.8
Sum of age of all girls = 16 x 11.4 = 182.4
∴ Average age of 30 students = (170.8 + 182.4)/30 = 11.77 years
Hence, statement either (A) are (C) and (B)
are required
Explanation : 10 1902, on the instructions of Lord Curzon, The Indian Universities Commission was appointed to make recommendations for reforms in University education in India. Appointed following a conference on education at Simla in September 1901, the Commission was led by Law member Thomas Raleigh and included among its members Syed Hussain Belgrami and Justice GurDa Banerjee.
Explanation : Type A (universal affirmative) and Type
E (universal negative) propositions are
contraries.
Refer to the classical square of
opposition shown below and the distribution
table provided.
Explanation : Gesturalandnon-verbalcommunicationinclude
signals and cues without the use of words.
Verbal communication includes the
spoken (oral) and written words. Written
communication is a formal method
of communication and is inflexible. As per
Chapter VI of Indian Evidence Act, 1872
deals with exclusion of oral evidence by
documentary evidence. Oral verbal evidence
of a witness can be considered doubtful
if it is in contradiction with the previous
statement Documents once put into writing
are considered to be the best evidence. The
very object for which writing is used is to
perpetuate the memory of what is written
down, and so to furnish permanent proof of it
Section 62 of the Evidence Act makes it clear
that primary evidence is the document itself. A
"document', as defined in Section 3 of the Act, is any matter which is expressed or described
on any substance by means of letters, figures
or remarks or by more than one means and
which can be used for recording the matter.
Explanation : Causes of forest fires largely related to
climatic conditions such as temperature,
wind speed and direction, level of moisture
in soil and atmosphere and duration of dry
spells. Other natural causes are the friction of
bamboos swaying due to high wind velocity
and rolling stones that result in sparks setting
off fires in highly inflammable leaf litter on
the forest floor.