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Marks of two students, Simi and Shally in a unit test out of 50 are given. Based on this table, which of the following statements is wrong? Subject
Question

Marks of two students, Simi and Shally in a unit test out of 50 are given. Based on this table, which of the following statements is wrong?

Subject

Marks of Simi

Marks of Shally

English

30

35

Hindi

45

42

Mathematics

48

50

Science

38

38

Social Science

25

40

A.

Difference of their aggregate marks is 19.

B.

Average of Simi's marks 37.2.

C.

Difference of highest-lowest marks of both are equal.

D.

Both have scored highest in Mathematics.

Correct option is C

Solution:

Aggregate marks

Simi = 30 + 45 + 48 + 38 + 25 = 186

Shally = 35 + 42 + 50 + 38 + 40 = 205

Difference = 205 − 186 = 19 → A is correct

Average of Simi’s marks

1865\frac{186}{5}​ = 37.2

→ B is correct

Highest–lowest difference (Range)

Simi: highest = 48, lowest = 25 → range = 23

Shally: highest = 50, lowest = 35 → range = 15

Ranges are not equal → C is wrong

Highest score subject

Simi’s highest = Mathematics (48)

Shally’s highest = Mathematics (50)

→ D is correct

Wrong statement: C

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