Sorry for a wrong answer of the second question. sending the same again.
2. In a class 35% students failed in hindi, 45% failed in english
subjects respectively. 20% students failed in both subjects, find out
the percentage of the students who passed in both subjects.
Total numbers of the students: = 100
Failed in Hindi = 35%
Passed in Hindi: = 100 minus 35 = 65.
Failed in English: = 45
passed in English = 100 minus 45 = 55.
failed in both = 20.
Passed in either Hindi or English = 100 minus 20 = 80.
Passed in Both =
A. Passed in either Hindi or English minus
Passed in Hindi
= 80 minus 65 = 15
Plus
B. Passed in either Hindi or English minus
Passed in English
=80 minus 55 = 25
= A plus B
=15 plus25
=40 Answer.
----- Original Message -----
From: "Mohib Anwar Rafel" <mohibra...@gmail.com>
To: "accessindia" <accessindia@accessindia.org.in>
Sent: Saturday, June 22, 2013 9:34 PM
Subject: [AI] help me in understanding the method for solving such type of
mathematical problems
Hi friends I am unable to understand the way to solve the following
problems, even I couldn't understand it by reading R. S. Agarwal book.
please guide me.
1. If the population of a town is 1,50,000 at present, it is
increasing at the rate of 5% per annum,
(a) what will be the population of the town after 2 years?
(b) what was the population of the town before 2 years?
2. In a class 35% students failed in hindi, 45% failed in english
subjects respectively. 20% students failed in both subjects, find out
the percentage of the students who passed in both subjects.
--
Mohib Anwar Rafel
M.Phil/Masters in International Law, Center for International Legal
Studies JNU.
Pursuing Masters of Law, at University of Delhi
Phone: 09811767506,
01127666896
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