80% pass in english, 70%pass in maths , 10%fail in both ,
144 pass in both . How many all appeared to the test?
Answers were Sorted based on User's Feedback
Answer / wajahat hussain
pass English =80%
fail=100-80=20%
pass Math = 70%
fail in Math=100-70=30%
fail in both=10%
total fail students= fail in Eng+fail in Math-common
= 20+30-10=40%
if 40% fail then 60% will pass
let total students=x
hence
60% 0f (total students)=144
60/100 of (x)= 144
x=(144x100)/60
X=240
total students=240
Is This Answer Correct ? | 221 Yes | 16 No |
Answer / kw
E: 80%, Fail in both: 10%, therefore only M pass is 10%
M: 70%, fail in both: 10%, therefore only E pass is 20%
100% = all fail + only E pass + only M pass + both E and M
pass
100%=10%+20%+10% + both E and M pass
Therefore, both E and M pass = 60%
60%=> 144
100% => 240
Answer: 240
Is This Answer Correct ? | 69 Yes | 15 No |
Answer / wajahat hussain
fail in English=100-80=20%
fail in Math =100-70=30%
fail in both=10%
total fail= fail in Eng+fail in Math-common
= 20+30-10
= 40%
if 40% failed than 60% passed
let total students=x
hence
60%of(x)=144
x=(144x100)/60
X=240
total number of students=240
Is This Answer Correct ? | 22 Yes | 2 No |
Answer / abimozhi
In an examination, 60% passed in English and 70%in Maths,but 20% failed in both of these subjects.If 2500 candidates passed in both the subjects, the number of the candidates appeared for the examination?
Is This Answer Correct ? | 17 Yes | 8 No |
Answer / ram
240 is the right answer
bcos
if u assume 160 as answer
160 -100%
144 - 90%
16 - 10%
if u say 90% passed in both and 10% failed in both
then whey they are asking
80% pass in english, 70%pass in maths in the question?
Think buddies
Is This Answer Correct ? | 13 Yes | 6 No |
Answer / kamal kumar das
total pass % of candidates in both subjects= 80%+70%=150% . but given 10% failed in both so 90% passed in both. given 90%=144then 1%=144/90 and 150%=144/90*150=240
Is This Answer Correct ? | 4 Yes | 1 No |
Scientific publishing aptitude interview question
0 Answers Scientific Publishing Services,
i am going to write RBI officer b grade exam. can u pls send me past 3 years questions?
please send 10 year question papers of clerical and probationary officer question papers of sbi bank ........syed0460@gmail.com this is my email id....
how do prepare descriptive test paper in bank exams
Find the ratio of the areas of the regular hexagons inscribed in and circumscribed around a circle of radius 10cm.
8 inch Pizza rs 300. If 16 inch is sold at 900. What % discount is there?
I want RRB loco pilot exam model question papers and previous rrb model solved question papers
3 Answers RRB, Electrosteel, Karthik Industries,
(Words not repeated exactlybut question is this) Digit sliding means if there is a number 1627, after digit sliding it will be 7162. Say a lowest positive integer with unit digit as z, after digit sliding a new number is acquired which four times the original number before digit sliding. How many digits do the original number have?
x==2+2^(2/3)+2^(1/3) .Then what is the value of x^3-6X^2+x ? here X^Y indicates X to the power of Y.
FULL FORM OF R.O.S.H.A.N
Use Venn diagrams to answer each of the following questions. You must show your Venn diagram for each problem. 1. A survey of 80 sophomores at a certain western college showed the following: 36 take English ,32 take history 32 take political science 16 take history and English 16 take political science and history ,14 take political science and English 6 take all three How many students: a) take English and neither of the other two? ____________ b) Take none of the three courses? ____________ c) take history, but neither of the other two? ____________ d) take political science and history but not English? ____________ e) do not take political science?
13 Answers Accenture, JPMorgan Chase, Syntel,
What do you think is the most critical problem facing India today?