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**ganesh****Moderator**- Registered: 2005-06-28
- Posts: 21,344

1. A tin holds 16½ liters of oil. How many such tins would be required to hold 313½ liters of oil?

2. The perimeter of a rectangle is 18 3/4 meters. If the length of the rectangle is twice the breadth, find the area of the rectangle.

3. Find nine rational numbers between 1/6 and 1/5.

4. The perimeter of a square is 18.4 meters. Find its area.

5. Express the following in power notation:-

(i)

(ii)

6. Evaluate the following:-

(i)

(ii)

7. Simplify:-

(i)

(ii)

(iii)

8. Find the smallest number by which each of the following is to be divided to make it a perfect square:

(i) 243

(ii) 512

(iii) 756

(iv) 3675

9. Without actual multiplication, evaluate the following:-

(i) 25² - 24²

(ii) 63² - 62²

(iii) 421² - 420²

(iv) 931² - 930²

10. Find the square roots of the following numbers:-

(i) 571536

(ii) 11025

(iii) 28224

It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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