Sample Question Paper Business Mathematics Jharkhand : Plus Two / 12th Std / +2 www.jac.nic.in

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Document Described : Business Mathematics Question Paper, Jharkhand Question Paper

BUSINESS MATHEMATICS
(Optional)
Full Marks - 100
Pass Marks : 33
Time : 3 Hours
Candidates are required to give their answers in their own words as far as practicable.
Figures in the margin indicate ful marks.

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General Instructions :
(i) The question paper consists of two Groups? A and B. Both Groups are compulsory.
(i) For Group ? A:
Question Nos. 1 to 6 are of 3 marks each.
Question Nos. 7 to 11 are of 4 marks each.
Question Nos. 12 and 13 are of 6 marks each.
(ii) For Group ? B:
Question Nos. 14 to 17 are of 3 marks each.
Question Nos. 18 to 22 are of 4 marks each.
Question Nos. 23 to 25 are of 6 marks each.
(iv) Al questions are compulsory.
(v) Internal choice have been provided in somequestions. You have to attempt only one of the choice in such questions.
(vi) Al parts of a question should be attempted at one place.
(vi) Use of calculator is not permitted. However, you may ask for logarithmic and statistical tables, if required.

Group : A
1. In a G.P. which begins with 1, the sum of three terms is 13. Find the common ratio.
2. A man saves Rs. 20 in the first month, Rs. 30 in the 2nd month, Rs. 40 in the third month and so on up to five years. Find the total amount saved in five years.
14. From the following, interpolate the missing figure :
x 25, 30, 35, 40, 45, 50
y 55, 60, ?, 72, 75, 80
15. A coin is tossed three times. What is the probability of getting al the heads in 3 toss- ing ?
16. What is time series ? Show its importance.
17. Find the chance of getting more than 15 in one throw of 3 dice.
18. Find the mode of the folowing series :
19. Compute median from the folowing series :
Size: 11-14 15-19 20-24 25-29 30-34 35-39
Frequency: 7 15 30 10 5 2
20. Find out the H.M. of the folowing:
Values ? 1, 1.5, 5, 15, 250, 0.5, 0.009
21. Find out geometric mean from the folowing data :
Marks: 10 15 25 40 50
No. of Student: 4 6 10 7 3
22. The average income of 100 persons is calculated 20, while the average income of al the 150 persons is 25. Calculate the average income of 50 persons.

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