#### Life Mathematics Model Question Paper

8th Standard EM

Reg.No. :
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Maths

Time : 01:30:00 Hrs
Total Marks : 50
3 x 1 = 3
1. 12% of 250 litres is the same as ________of 150 litres.

(a)

10%

(b)

15%

(c)

20%

(d)

30%

2. When 60 is subtracted from 60% of a number to give 60, the number is

(a)

60

(b)

100

(c)

150

(d)

200

3. If 48%of 48 = 64% of x , then x =
(a) (b) (c) (d)

(a)

64

(b)

56

(c)

42

(d)

36

4. 6 x 1 = 6
5. If 30%of x is 150, then x is _________.

()

x = 500

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

()

x = 50

7. 0.5252 is ________%.

()

52.52%

8. A mobile phone is sold for Rs8400 at a gain of 20%. The cost price of the mobile phone is________.

()

Rs.7000

9. The marked price of a mixer grinder is Rs 4500 is sold for Rs 4140 after discount. The rate of discount is __________.

()

8%

10. The total bill amount of a shirt costing Rs575 and a T-shirt costing Rs325 with GST of 5 %is_______.

()

Rs.945

11. 11 x 2 = 22
12. Rewrite each underlined part using percentage language.
(i) One half of the cake is distributed to the children.
(ii) Aparna scored 7.5 points out of 10 in a competition.
(iii) The statue was made of pure silver.
(iv) 48 out of 50 students participated in sports.
(v) Only 2 persons out of 3 will be selected in the interview.

13. 48 is 32%of what number?.

14. What is 25% of 30%of 400?

15. If a car is sold for rs200000 from its original price of rs300000, find the percentage for decrease in the value of the car.

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

17. If the numerator of a fraction is increased by 25% and the denominator is increased by 10%, it becomes $\frac { 2 }{ 5 }$. Find the original fraction.

18. The ratio of boys and girls in a class is 5:3. If 16%of boys and 8%of girls failed in an examination, then find the percentage of passed students.

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. If the selling price of 10 rulers is the same as the cost price of 15 rulers, then find the gain percentage.

21. Find the unknowns x, y and z.

 S.No Name of the items Name of the items Selling Price Discount (i) Book Rs225 x 8% (ii) LED TV y Rs11970 5% (iii) Digital clock Rs750 Rs615 z
22. If a mattress is marked for Rs.7500 and is available at two successive discounts of 10% and 20%, find the amount to be paid by the customer

23. 3 x 3 = 9
24. If x % of 600 is 450 then, find the value of x.

25. 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.

26. Akila scored 80%in an examination. If her score was 576 marks, find the maximum marks of the examination.

27. 2 x 5 = 10
28. The marked price of an LED tube light is Rs550 and the shopkeeper offers a discount of 8% on it. Find the selling price of the LED tube light.

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.