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## Mathematics

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10th

grade

65%

accuracy

189

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English World

4 years

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10 questions

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- 1. Multiple Choice45 seconds1 pt
In an AP, if d = –4, n = 7, a

_{n}= 4, then a is6

7

20

28

- 2. Multiple Choice45 seconds1 pt
-20

20

-30

30

- 3. Multiple Choice1 minute1 pt
The 21st term of the AP whose first two terms are –3 and 4 is

17

137

143

-143

- 4. Multiple Choice45 seconds1 pt
If the common difference of an AP is 5, then what is a

_{18}– a_{13}?5

20

25

30

- 5. Multiple Choice1 minute1 pt
The sum of first five multiples of 3 is

45

55

65

75

- 6. Multiple Choice1 minute1 pt
The middle most term (s) of the AP:–11, –7, –3, ..., 49 is:

18,20

19,23

17,21

23,25

- 7. Multiple Choice1 minute1 pt
If 7 times the 7th term of an AP is equal to 11 times its 11th term, then its 18th term will be

7

11

18

0

- 8. Multiple Choice2 minutes1 pt
In an AP if a = 1, a

_{n}= 20 and S_{n}= 399, then n is19

21

38

42

- 9. Multiple Choice1 minute1 pt
If the numbers n – 2, 4n – 1 and 5n +2 are in AP, then the value of n is:

1

2

-1

-2

- 10. Multiple Choice1 minute1 pt
The first four terms of an AP, whose first term is –2 and the common difference is –2, are

– 2, 0, 2, 4

– 2, 4, – 8, 16

– 2, – 4, – 6, – 8

– 2, – 4, – 8, –16

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