out of 115000 students 20% failed in SLC, 40% failed in science only a

1.	out of 115000 students 20% failed in SLC, 40% failed in science only and 35% failed in mathematics only. but 5% failed in other subjects. Find how many students failed in both subject?
Answer» Step-by-step explanation: Let us take the total NUMBER of students GIVING the exam be 100. Let A=Number of Students that failed in MATHS=45 Let B-Number of Students that failed in SCIENCE=30 Now, A can contain the number of students that failed in Science as well. Similarly, B can contain the no. of students that failed in Maths as well. Hence, Subtract the COMMON part in both them. Therefore, Failures in only Mathematics-45-25-20 Also, Failures in only Science-30-25=5 Total No. Of Failures-20+5=25 Total No. Of Approved Students=100-25-75 %age of Approved Students=75%

out of 115000 students 20% failed in SLC, 40% failed in science only and 35% failed in mathematics only. but 5% failed in other subjects. Find how many students failed in both subject?

Answer»

Step-by-step explanation:

Let us take the total NUMBER of students GIVING the exam be 100.

Let A=Number of Students that failed in

MATHS=45

Let B-Number of Students that failed in SCIENCE=30

Now, A can contain the number of students that failed in Science as well.

Similarly, B can contain the no. of students that failed in Maths as well.

Hence, Subtract the COMMON part in both them.

Therefore, Failures in only Mathematics-45-25-20

Also, Failures in only Science-30-25=5

Total No. Of Failures-20+5=25

Total No. Of Approved Students=100-25-75

%age of Approved Students=75%

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