# In a class, 50% students passed in Urdu and 55% students passed in phy

| In a class, 50% students passed in Urdu and 55% students passed in physics. If 15% students passed in both subjects and 60 students failed in both subjects. Find number of students passed in only one subject.

A. 600

B. 500

C. 450

D. 350

### Right Answer is: C

#### SOLUTION

Let total students =x

We solve such questions using Venn- Diagram as shown below

From venn diagram we can observe that number of students who passed in at least one subject is = 35% + 15% + 40 % = 90%

Number of students who failed in both subject = 100% – 90% = 10%

A.T.Q.

10% of x = 60

⇒ x = 600

number of students passed in only one subject = 75 % of x =

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In a class, 50% students passed in Urdu and 55% students passed in phy