Question

in class of 80 students 25% students failed in maths find the number of students who passed in maths​

Answer 1

Step-by-step explanation:

Student Passed in English =80%

Students failed in English=100%−80%=20%

Students passed in Maths =70%

Students failed in Maths =100%−70%=30%

Students failed in both =10%

Total failed students = Failed in English + failed in Math − Common

Total fail students =20%+30%−10%=40%

If 40% failed then 60% will be passed.

Let total students be x.

Hence, 60% of x=144

⇒ 100

60

×x=144

⇒x=

60

144×100

⇒x=240

Therefore, total students is 240.

Answer 2

Answer:

number of srudent in class 80

falid student 25%

pass student?

Step-by-step explanation:

so we have to find pass student

so for that first we have to find faild sutent and subtract from them

....

soloustion...

80×25%

_________

100

= 2000

______

100

=20 FAILD STUDENT

THEN SUBTRACT 20 FROM 80

ANSWER 60

SO FOR THAT 60 STUDENT IS PASSS