Question

ALL QUESTIONS)
Q1. a) The weight of a boy was 50 kg. It was wrongly measured as 55 kg. Find the error percent.
b) Find an angle which is one-fourth of its supplement
c) If 3x --=*
- 5, find the value of x
[3]
[3]
1
x
5
5
Q2. a) Find the mean and mode of the following data:
[3]
7, 8, 16, 9, 12, 11, 9, 5, 8, 9
b) The radius of a wheel is 77cm Find the distance covered by the wheel in making 500 revolutions. [3]
c) Find the value of the unknown angles marked in the figure (giving reasons)
[4]
70°
Q3. a) Find the area of an equilateral triangle whose each side is 4 cm. (Take 3 = 1.73)
b) Two complementary angles are in the ratio 5:4. Find the angles
c) (i) Find the median of the following data
41, 52, 48, 40, 65, 34, 53, 47, 61, 44, 42, 35, 31
(ii) Express 25 % as a ratio
[3]
[3]
[2+2=4]​

Answer 1

Answer:

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