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

You are not logged in.

- Topics: Active | Unanswered

**irspow****Member**- Registered: 2005-11-24
- Posts: 1,055

I am at an age where I have forgotten more than I remember, but I still pretend to know it all.

Offline

**Jai Ganesh****Administrator**- Registered: 2005-06-28
- Posts: 43,639

Hi,

Neat work!

885. When a coin is tossed successively three times, find the probability of getting

(i) at least two tails

(ii) more heads that getting the number of tails

(iii) at least one head and one tail.

It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

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

Offline

**irspow****Member**- Registered: 2005-11-24
- Posts: 1,055

I am at an age where I have forgotten more than I remember, but I still pretend to know it all.

Offline

**Jai Ganesh****Administrator**- Registered: 2005-06-28
- Posts: 43,639

Hi,

Good work!

886. From a pack of 52 playing cards, one card is drawn. If each of the 52 cards is equally likely to be drawn, then find the probability of the card drawn is

(i) a heart

(ii) a queen

(iii) black

(iv) red and a jack

(v) either red or a jack

(vi) neither red not a jack.

It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

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

Offline

**irspow****Member**- Registered: 2005-11-24
- Posts: 1,055

I am at an age where I have forgotten more than I remember, but I still pretend to know it all.

Offline

**Jai Ganesh****Administrator**- Registered: 2005-06-28
- Posts: 43,639

Hi,

Excellent!

887.

It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

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

Offline

**irspow****Member**- Registered: 2005-11-24
- Posts: 1,055

I am at an age where I have forgotten more than I remember, but I still pretend to know it all.

Offline

**Jai Ganesh****Administrator**- Registered: 2005-06-28
- Posts: 43,639

Hi,

888.

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

Offline

**irspow****Member**- Registered: 2005-11-24
- Posts: 1,055

I am at an age where I have forgotten more than I remember, but I still pretend to know it all.

Offline

**Jai Ganesh****Administrator**- Registered: 2005-06-28
- Posts: 43,639

Hi,

Neat work!

889.

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

Offline

**irspow****Member**- Registered: 2005-11-24
- Posts: 1,055

I am at an age where I have forgotten more than I remember, but I still pretend to know it all.

Offline

**Jai Ganesh****Administrator**- Registered: 2005-06-28
- Posts: 43,639

Hi,

Brilliant!

890. The product of two successive numbers is 4032. Which is greater of the two numbers?

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

Offline

**irspow****Member**- Registered: 2005-11-24
- Posts: 1,055

I am at an age where I have forgotten more than I remember, but I still pretend to know it all.

Offline

**Jai Ganesh****Administrator**- Registered: 2005-06-28
- Posts: 43,639

Hi,

Neat work!

891. Solve the following system of linear equations:

ax + by - a + b = 0.

bx - ay - a - b = 0.

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

Offline

**irspow****Member**- Registered: 2005-11-24
- Posts: 1,055

I am at an age where I have forgotten more than I remember, but I still pretend to know it all.

Offline

**Jai Ganesh****Administrator**- Registered: 2005-06-28
- Posts: 43,639

Hi,

Neat work!

892. Solve:

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

Offline

**irspow****Member**- Registered: 2005-11-24
- Posts: 1,055

I am at an age where I have forgotten more than I remember, but I still pretend to know it all.

Offline

**Jai Ganesh****Administrator**- Registered: 2005-06-28
- Posts: 43,639

Hi,

Excellent!

893. Solve for x and y.

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

Offline

**irspow****Member**- Registered: 2005-11-24
- Posts: 1,055

I am at an age where I have forgotten more than I remember, but I still pretend to know it all.

Offline

**Jai Ganesh****Administrator**- Registered: 2005-06-28
- Posts: 43,639

Hi,

Neat work!

894.

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

Offline

**pi_cubed****Member**- From: A rhombicosidodecahedron
- Registered: 2020-06-22
- Posts: 115

*Last edited by pi_cubed (2021-03-06 09:37:49)*

pi³

Offline

**Jai Ganesh****Administrator**- Registered: 2005-06-28
- Posts: 43,639

Hi,

Neat work!

895.

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

Offline

**irspow****Member**- Registered: 2005-11-24
- Posts: 1,055

I am at an age where I have forgotten more than I remember, but I still pretend to know it all.

Offline

**pi_cubed****Member**- From: A rhombicosidodecahedron
- Registered: 2020-06-22
- Posts: 115

*Last edited by pi_cubed (2021-03-06 11:34:10)*

pi³

Offline

**Jai Ganesh****Administrator**- Registered: 2005-06-28
- Posts: 43,639

Hi irspow and pi_cubed,

Excellent!

896.

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

Offline