Question

Exercise 8.2 T +06
1. Evaluate the following
C.
a. 70% of 2 days (express as hours) b. 25.5% of 65
17% of 85
d. 45% of 1 hour (express as minutes) e. 12.5% of 455 kg
f. 22 % of 60
2. Find the value of x.
a. 15% of r = 45
b. 12% of 456 kg = x
c. x% of 640 cm = 352 cm
d. 33.5% of r = 23.45
e. % of 90 = 18
f. *% of 1200 kg = 402 kg
3. An alloy consists of 45% nickel, 30% zinc and the remaining is copper. Find the percentage of
Copper in the alloy.
4. In a newspaper 25% news is about sports, 15% is about business trends, 5% entertainment, 25%
current affairs and remaining is international news. Find the percentage of international news that
appears in the news paper.
5. 40% of residents in a building complex are from the service class, 55% of the residents are from
the business class and the remaining are into research and development. What percentage of the
residents in the building complex are into research and development? If there are 1500 people
residing in the building complex, how many people are in the service class, business class and in
research and development?
125​

Answer 1

Answer:

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