(B) Answer the following questions.
1. Factorise: 8xa+5 yb - 10 ya - 4 xb.
2. Find the midde term: x2+ ... + 49.
[04]
-3 (A) answer the following [12]
1. Find the values by using proper identity.
(a) 63 X57
2. Express the following numbers in standard form:
(a) 216000000
3. Factorise:
(a) 4 x2-28x+ 49 (b) x2-x-30
(b) (52)2
(b) 0.0000085
(B) Answer the following: [04]
1. The length of a square field and a rectangle field are 80m and 100m respectively. It
perimeter of both fields is same, find the breadth of rectangle field.
2. The circumference of circle is 22/7 cm, Find its diameter.
Q-4(A) Answer the following: [10]
1. The data of number of children born in a hospital in six months is given below.
Represent given data through linear graph.
(Scale: On Y-axis : 1cm= 10 children)
Month
No.of children 78
2. The internal measures of a cuboid room are 13m X 9m X 5m. Find the total cost
January February |March April May June
48 56 84 66 92
of white washing all four walls of a room, if the cost of while washing is Rs.4 per
m2. What will be the cost of white washing if the ceiling of the room is also
white washed. [06] (B) Answer the following
1.What is 2-D figure?
2. Factorise x2-(x-z)
3. If following number is multiple of 3,where x is a digit, what is the value ofx in of
the following number:-235 x.
Q-4 (A) Answer the following
1. Multiply (find the product): [2a-1/3] [2a + 1/3]
2. Find the area of the given figure:
[12]
5cm
3.15 sweeper take 4 hours to clean the public garden. How many hours will be taken
by 12 sweeper to clean the same garden?
4. Simplify: 9-3x 7-14x
3 7 [04]
(B) State whether the following statements are true or false:
1.3x-1isa trinomíal expression.
2.(x-y)-(x +y) = -2y.
3.4 xX3x=12 x2
4. The point (0,9) lies on the axis.
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