80% pass in english, 70%pass in maths , 10%fail in both ,
144 pass in both . How many all appeared to the test?
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Answer / wajahat hussain
pass English =80%
pass Math = 70%
fail in Math=100-70=30%
fail in both=10%
total fail students= fail in Eng+fail in Math-common
if 40% fail then 60% will pass
let total students=x
60% 0f (total students)=144
60/100 of (x)= 144
|Is This Answer Correct ?||208 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
100%=10%+20%+10% + both E and M pass
Therefore, both E and M pass = 60%
100% => 240
|Is This Answer Correct ?||68 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
if 40% failed than 60% passed
let total students=x
total number of students=240
|Is This Answer Correct ?||20 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||6 No|
Answer / ram
240 is the right answer
if u assume 160 as answer
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?
|Is This Answer Correct ?||13 Yes||5 No|
Answer / pradeep
240 appeared for the test
|Is This Answer Correct ?||9 Yes||5 No|
Answer / bhavna kuklani
can not find out.
|Is This Answer Correct ?||7 Yes||5 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 ?||3 Yes||1 No|
Answer / mukesh
|Is This Answer Correct ?||0 Yes||4 No|
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