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B.S.A. PUBLIC SCHOOL, BEGUSARAI Time- 2 hours SUMMATIVE ASSESSMENT-II F.M- 80 Class- 5 2018-19 Subject-Math 1. Define the terms:10 Bar graph, Pyramid, Trapezium, Proportion, Kite 2. Fill in the blanks:5 a) A cuboid has _____ faces,_____edge and _____ vertices. b) The sum of the lengths of the sides of a triangle is called its _____. c) (b²-a²) - (a²-b²) = _____. d) 3.02, 4.75, 1.63 are examples of _____ decimals. e) An expression having one term is called a _____. 3. Write ‘T’ for True and ‘F’ for False statements given below:5 a) a dozen: a score= 5:3 b) -3xy²z is a monomial. 341 c) = 3.410 d) 30, 40, 45, 60 are in proportion. 1000

e) The coefficient of x in 5xy is 5. 4. Mark (√) against the correct answer in each of the following:-

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a) If a,b,c are in proportion, then (i) a²=bc (ii) b²=ac (iii) c²=ab (iv) none of these b) If 4:5::x:35 then the value of x is (i) 42 (ii) 32 (iii) 28 (iv) none of these 1

c) If x +5=8 then x =? 3

(i) 3 (ii) 6 (iii) 9 (iv) 12 d) A gas pipe is an example of a (i) Cuboid (ii) Cube (iii) Cone (iv) Cylinder e) A football is an example of a (i) Cylinder (ii) Cone (iii) Sphere (iv) none of these 5. Simplify:1 2 1 3 3 1 a) 7 ÷ 𝑜𝑓 2 + 1 ÷ 2 ÷ 1 3

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b) 2p³-3p²+4p-5-6p³+2p²-8p-2+6p+8 6. Subtract the sum of 5x-4y+6z and -8x+y-2z from the sum of 12x-y+3z and -3x+5y-8z. 5 7. If x=1, y=2 and z=5. Find the value of x²+y²+z² 2 8. Draw a circle with centre O and radius 3 cm. Draw a sector having an angle of 54°. 4

9. The adjoining figure has been obtained by using two triangles. Proved the ⦤A+⦤B+⦤C+⦤D+⦤E+⦤F=360°. 5 A B

F

C

E D

10. In a ΔABC, if 2⦤A=3⦤B=6⦤C then calculate ⦤A, ⦤B, ⦤C. 5 11. A room is 13m long and 9m broad. Find the cost of carpeting the room with the carpet 75cm broad at the rate of ₹ 65 per metre. 3 12. The cost of fencing a rectangular field at ₹ 30 per metre is ₹ 2400. If the length of the field is 24m. Find its breadth. 3 13. The length of the rectangular park is thrice its breadth. If the perimeter of the park is 168metres. Find its dimensions. 4 14. Mrs Goel is 27 years older than her daughter Rekha after eight years she will be twice as old as Rekha. Find their present ages. 3 15. The ratio of income to the expenditure of a family is 7:6. Find the savings if the income is ₹ 14000. 3 16. 40 men can finish a piece of work in 26 days. How many men will be needed to finish it in 16 days? 2 st nd th 17. The 1 , 2 and 4 terms of a proportion are 12,21,14 respectively. Find its 3rd term. 2 18. The total weight of a bag containing 13kg750g of potatoes and 8kg80g of tomatoes is 22kg200g. How much is the weight of the empty bag? 3 19. By how much should 84.5 be decreased to get 27.84? 3