Life Mathematics Model Question Paper

8th Standard EM

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Maths

Time : 01:30:00 Hrs
Total Marks : 50
5 x 1 = 5
1. 12% of 250 litres is the same as ________of 150 litres.

(a)

10%

(b)

15%

(c)

20%

(d)

30%

2. A fruit vendor sells fruits for Rs200 gaining Rs40. His gain percentage is

(a)

20%

(b)

22%

(c)

25%

(d)

16$\frac { 2 }{ 3 }$%

3. A man buys an article for Rs150 and makes overhead expenses which are 12% of the cost price. At what price must he sell it to gain 5%?

(a)

Rs.180

(b)

Rs.168

(c)

Rs.176.40

(d)

Rs.85

4. The single discount which is equivalent to two successive discount of 20%and 25% is

(a)

40%

(b)

45%

(c)

5%

(d)

22.5%

5. The cost of a machine is Rs.18000 and it depreciates at 16 % annually. Its value after 2 years will be___________.

(a)

Rs.2000

(b)

Rs.1500

(c)

Rs.3000

(d)

Rs.2500

6. 5 x 1 = 5
7. If 30%of x is 150, then x is _________.

()

x = 500

8. If x % of x = 25, then x = ________.

()

x = 50

9. Loss or gain percentage is always calculated on the__________.

()

Cost price

10. The annual rate of growth in population of a town is 10%. If its present population is 26620, the population 3 years ago was_________.

()

Rs.20,000

11. Th e marked price of a mixer grinder is Rs.4500 is sold for Rs.4140 aft er discount. Th e rate of discount is __________.

()

11$\frac { 1 }{ 9 }$%

12. 9 x 2 = 18
13. 48 is 32%of what number?.

14. A bank pays rs240 as interest for 2 years for a sum of rs3000 deposited as savings. Find the rate of interest given by the bank.

15. A Welfare Association has a sports club where 30% of the members play cricket, 28% play volleyball, 22% play badminton and the rest play indoor games. If 30 member play indoor games.
(i) How many members are there in the sports club?
(ii) How many play cricket, volleyball and badminton?

16. If the difference between 75% of a number and 60% of the same number is 82.5, then find 20%of the number.

17. A number when decreased by 20% gives 80. Find the number.

18. A student gets 31% marks in an examination but fails by 12 marks. If the pass percentage is 35%, find the maximum marks of the examination.

19. If the profit earned on selling an article for Rs.810 is the same as loss on selling it for Rs.530, then find the cost price of the article.

20. Find the compound interest on Rs3200 at 2.5% p.a for 2 years, compounded annually.

21. Th e present height of a tree is 847 cm. Find its height two years ago, if it increases at 10 %p.a.

22. 4 x 3 = 12
23. If x % of 600 is 450 then, find the value of x.

24. In a leadership election between two persons A and B, A wins by a margin of 192 votes. If A gets 58% of the total votes, find the total votes polled.

25. The population of a town is increasing at the rate of 6% p.a. It was 238765 in the year 2018. Find the population in the year 2016 and 2020.

26. Find the diff erence in C.I and S.I for
(i) P = Rs.5000, r = 4% p.a, n = 2 years.
(ii) P = Rs.8000, r = 5% p.a, n = 3 years.

27. 2 x 5 = 10
28. A pre-owned car was bought for Rs240000. On repairs Rs15000 was spent, Rs8500 was paid for its insurance. Th en, it was sold for Rs258230. What is the gain or loss percentage?

29. A water heater is sold by a trader for Rs10502 including GST at 18% and 11%profit. Find the M.P of the water heater, profit and GST.