Enfant India International School
II Unit test (2020-21)
Std:-8
Sub:- Maths
Mark:-20
All questions are compulsory. Each question carry equal marks. (8×2.5)
1- let U={1,2,3,4,5,------8,9}and
A={1,2,3,4} B={2,4,6,8} Find A' and B'(II) AUB.
2- A metal bar is 2.4m. long after heating it's length Increases by 2%.What is the new length.
3- A person purchased a chair for Rs 700, spent Rs 170 on its repairs and Rs30 on the cartage.if he sold the chair for Rs 1080.what is this gain percent.
4- Find the square root of
(i)1089/3481. (ii)2.337/9216
5- Find the greatest number of 4 digits. that is perfect square.
6- If a =2m and b=2m+1show that 8a3/b2=2m+1.
7- Arrange in order from least to greatest - ¼ , ⅜ ,2/7
8- By selling an article for Rs 960 a man incurrs a loss 4% what was the c.p. of article.
