Section -A
Q(1) Write in the simplest form
a) 6 days to 3 weeks
b) 54cm to 2m
Q(2) Check whether the following numbers are in proportion or not
a) 8, 20, 6 and 15
b) 9, 12 and 16
Q(3) Convert into percentage
a) 3
8
Q(4) Find third angles to a triangle whose two angles are 73° and 37°
Q(5) Two sides of a triangle are 5cm and 9cm what can be the length of its third side?
Q(6) Find the perimeter of an equilateral triangle whose side is 48cm
Q(7) Find the area of the parallelograms whose base and height are 6.8cm and 3.2cm
Q(8) Find the mode of 2, 5, 1,2,4,6, 0, 3, 2, 1 and 2
Q(9) The runs scared by Nitin in 6 matches are as follows 17, 29, 05, 07, 55 and 62 find his
average score
Section=B
Q(1) Find the median of 3, 11, 7, 2, 5, 9, 9, 2, 10
Q(2) Find the area of triangles whose base and heights are 24cm and 20cm
Q(3) The circumference of a circle is 264cm find its arca
Q(4) A school won 24 cricket matches if this is 75% of the matches played how many
matches were played
Q(5) By selling a bicycle for 9240, Banti loss 12% how much should he sellit to gain 12%
Q(6) 42 men can complete a work in 17 days. How long will 51 men take to complete the
same work?
Q(7) Find the length of the hypotenusc in a night angled Triangle
a) a = 12cm, b = 9cm
b) a = 8cm, b = 15cm
Q(8) The angles of a triangle are (2 x - 7).(x + 25) and (3x + 12) find the measure of all angles
Section -C
Q(1) One card is draw from a well shuffled pack of 52 cards and the probability of getting
a black card
Q(2) A steel wire when bent in the form of a square of area of 121cm? The same wire is
bent in the form of a circle. Find the arca of the circle
Q(3) A rectangular plot is 75m long and 60m broad. It has a path of width Sm all around it
on the inside Find the area of the path and the cost of construction it at 3120 per m2
Q(4) A 5m long ladder when set against the wall of a house reaches height of 4 8m How far it the foot of the ladder from the wall?
Q(5) Vinay borrowed 9000 for 3 years at the rate of 5% p.a. find the amount after three
years
please answer fastly
Answers
Answer:
Step-by-step explanation:
1)3 weeks = 21 days
hence ratio=6days/21days
=2/7
first you should make the units common to get proper answer
2) 54cm: 2 m
So
we know that 1m = 100cm
so 2m = 2 X 100
200cm
Given
54cm/200cm
27cm/100cm
27cm /100cm is simplest form
Q2)
a)is a proportion.
b) is a proportion.
Q3)
a) Work out the division and you have a decimal value that represents the percentage: . 3. To convert a decimal value back into a percentage, perform the reverse operation: . 3 × 100 = 30 percent.
b) To convert a fraction to a percent, first divide the numerator by the denominator. Then multiply the decimal by 100 . That is, the fraction 48 can be converted to decimal by dividing 4 by 8 . It can be converted to percent by multiplying the decimal by 100 .
Q4)
First angle = 73degrees
second angle = 37degrees
∴ third angle =?
∴ third angle =180degrees - 73degree + 37 degree
∴180degree - 110degree
∴Third angle= 180 degree - 110degree
third angle =70 degree
Q5)
Two sides are given 5 cm and 9 cm. The sum of any two sides can not be greater than the third side. Therefore, the third side can not be greater than or equal to (9+5)=14 cm and it can not be less than or equal to (9–5)=4 cm
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