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In the following diagram, R = Students, P = Boys, W=Girls, and Z = Psychology. The numbers in different sections indicate the number of persons. How many girls are psychology students ?

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A16

B19

C18

D17

Answer:

A. 16

Read Explanation:

There are 16 girls who are psychology students.

  • W (Girls): Bottom-right circle

  • Z (Psychology): Top-right circle

  • R (Students): Bottom-left circle

To find the number of girls who are psychology students, we need to find the region where these three circles (W, Z, and R) overlap:

  • The number 16 lies exactly at the intersection of the W, Z, and R circles.

  • (Note: The number 22 is not included because those individuals are in Z and W, but not inside the Student circle R).

Related Questions:

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In the given figure, the circle represents boys, triangle represents students, and rectangle represents teenagers. What does M represent?

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Given below are three statements and three conclusions. Take the statements to be true even if they are at variance with commonly known facts, and decide whether the conclusion/s follow/s the given statements.

Statements:

I. Some monkeys are pandas.

II. Some pandas are giraffes.

III. All giraffes are lions.

Conclusions:

I. Some lions are pandas.

II. Some lions are monkeys.

III: Some giraffes are monkeys.

Three statements are followed by three conclusions numbered I, II and III. You have to consider these statements to be true, even if they seem to be at variance with commonly known facts. Decide which of the given follow(s) from the given statements. conclusions logically

Statements:

Some eggs are wheats

Some fruits are guavas

All guavas are lemons

Conclusions:

(I) Some fruits are wheats.

(II) Some lemons are fruits

(III) Some eggs are guavas