General Knowledge
I am the largest rodent in the world.
I am native to South America.
What am I?
Capybara!
What is the simple interest formula?
Interest = Principal x rate x number of time periods
I = P x r x n
What is the probability of rolling an even number on a six-sided dice?
3/6 = 1/2 or 50% or 0.5
What number do you get by adding the four digits of Killara High School's postcode?
2 + 0 + 7 + 1 = 10
"To be, or not to be, that is the question."
Shakespeare (in his play Hamlet)
Calculate the simple interest if $1500 is loaned at 4.5% p.a. for 3 years?
I = P x r x n
I = $1500 x 4.5% x 3
I = $202.5
Donald Trump has a current approval rating of 36%.
Estimate the chance that a random American you meet disapproves of Trump.
P(Approval) = 36%
P(Disapproval) = 1- 36%
= 64%
State Pythagoras' Theorem
a2 + b2 = c2
Name the part of the atom that carries a positive charge.
Proton
Calculate how much Bob spent on a car that cost $22 000 if he took out a simple interest loan at 6% p.a and the loan was over 7 years.
I = P x r x n
I = 22 000 x 6% x 7
I = $9 240
Total spent = 22 000 + 9 240
= $31 240
If there are 52 cards in a deck, what is the chance of drawing a Queen?
4 Queens in a deck: Queen of Hearts, Queen of Spades, Queen of Clubs and Queen of Diamonds.
P(Queen) = 4/52 = 1/13
What do you can a triangle which has two equal sides?
Isosceles
Which two countries share the longest land border?
Canada and the United States of America
Bob puts $15 000 into a savings account. It compounds annually at 5.5% p.a.
What is the balance of the savings account after 10 years? Answer to the nearest dollar.
FV = 15 000(1+5.5%)^10
= 25 622
1/2 x 1/2 x 1/2 x 1/2 = 1/16
I am the lead guitarist of the band Queen. When the band was starting out, I worked as high school maths and science teacher to earn extra money.
Who am I?
Brian May
Name 4 countries that end with 'stan'
For example: Pakistan
Name any four: Afghanistan, Kazakhstan, Kyrgyzstan, Tajikistan, Turkmenistan, and Uzbekistan
Sue puts $45 000 into a savings account. It compounds monthly at a rate of 4.5% p.a.
What is the balance of the savings account after 10 years? Answer to the nearest dollar.
rate = 4.5/12 = 0.0375%
n = 10 x 12 = 120
FV = 45 000(1+0.0375%)^120
= 47 071
Brazil has a 6% estimated chance of winning the world cup.
Germany has half the chance of winning as Brazil.
What is the chance that Germany will lose the world cup?
P(Brazil Win) = 6%
P(Germany Win) = 6% /2 = 3%
P(Germany lose) = 100 - 3
= 97%
If the area of a circle is 20 cm2 , what is the circumference of the circle?
Answer to the nearest whole number.
Area of a circle = πr^2 = 20
r = √(20/π)
Circumference of a circle = π x 2r
= π × 2 × √(20/π)
= 15.85220…
= 16