Discussion about math, puzzles, games and fun. Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ π -¹ ² ³ °

You are not logged in.

- Topics: Active | Unanswered

Pages: **1**

**ganesh****Moderator**- Registered: 2005-06-28
- Posts: 20,762

1. Find the length of a the side of a square whose area is 225 square meters.

2. Find the square root of

.3. Find the least number which when added to 624 makes it a perfect square.

4. What is the value of square root of 8-4√3?

(a) 2 - √3

(b) 2√3 - 1

(c) √6 - √3

(d) √6 - √2.

5. What is the value of x if

6. If 6 people spend $2400 in 4 months, then in how many months will 4 people spend $1800?

7. If 2 men can finish a work in 80 days then in how many days will 16 men finish the same work?

8. If A and B can do a piece of work in 10 days and 15 days respectively, then what portion of the work they can do together in 3 days?

9. My income is $1200 per month. If I save 20% of it every month, how much shall I save in a year?

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.

Offline

Pages: **1**