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# In a semi-annual exam the highest and the lowest scores of a class wer

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Manager
Joined: 25 Dec 2018
Posts: 148
Location: India
GMAT 1: 490 Q47 V13
GPA: 2.86
In a semi-annual exam the highest and the lowest scores of a class wer  [#permalink]

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24 Jan 2019, 08:11
2
3
00:00

Difficulty:

45% (medium)

Question Stats:

48% (01:20) correct 52% (01:18) wrong based on 22 sessions

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In a semi-annual exam, the highest and the lowest scores of a class were 45 and 15 respectively. The final exam marks were calculated by adding 5 to 1/3 of marks obtained in semi-annual exam. What is the difference between the range of marks in the semi-annual exam and the range of marks in the final exam?

A. 10
B. 15
C. 20
D. 30
E. 40
VP
Joined: 09 Mar 2018
Posts: 1001
Location: India
Re: In a semi-annual exam the highest and the lowest scores of a class wer  [#permalink]

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24 Jan 2019, 08:58
1
akurathi12 wrote:
In a semi-annual exam, the highest and the lowest scores of a class were 45 and 15 respectively. The final exam marks were calculated by adding 5 to 1/3 of marks obtained in semi-annual exam. What is the difference between the range of marks in the semi-annual exam and the range of marks in the final exam?

A. 10
B. 15
C. 20
D. 30
E. 40

Semi annual exam
Highest score 45
Lowest score 15

The final exam marks were calculated by adding 5 to 1/3 of marks obtained in semi-annual exam(ADD Carefully)
Highest score will become 5 + 15 = 20
Lowest score will become 5 + 5 = 10

Now the difference will be (45-15) - (20-10)

20

OA C
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Re: In a semi-annual exam the highest and the lowest scores of a class wer   [#permalink] 24 Jan 2019, 08:58
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