On a certain road 10 percent of the motorists exceed the posted speed limit and receive speeding tickets, but 20 percent of the motorists who exceed the posted speed limit do not receive speeding tickets. What percent of the motorists on the road exceed the posted speed limit? (A) 10 1/2 % (B) 12 1...

Regular hexagon can be broken up into 6 equilateral triangles. This property is very helpful during time crunch situations and thus we can play around with regular hexagons very easily and reach a conclusion just by looking at the symmetry (the mathematical proof can be found out but is not necessa...

A milkman professes to mix 1 part of approved water in every 3 parts of pure milk to sell. If pure milk costs him $100 per gallon, and the approved water costs him $4 per quart, then at how many dollars (to the nearest integer) per pint must he sell his milk in order to make an overall profit of 25...

The artist pierre -auguste renoir's last word was "flowers", spoken as a bouquet consisting of roses just picked from his garden were arranged in a vase on his bedroom windowsill. A)as a bouquet consisting of roses just picked from his garden were arranged A bouquet (singular) requires a ...

The sum of the digits of http://i.imgur.com/O1QtsJ1.png . What is the value of xy A) 28 B) 29 C) 30 D) 31 E) 32 http://i.imgur.com/1obYSh9.png Can be rewritten as: http://i.imgur.com/hz9nM1K.png So basically there will a pattern for the numbers: xy = 2 100 - 64 = 36 xy = 3 1000 - 64 = 9 36 10000 - ...

To find the number of trailing zeroes of n! find the number of the prime factors of 5 in n! All factorials greater than 1! are even, as they are all multiples of 2. Also, all factorials from 5! upwards are multiples of 10 (and hence have a trailing zero as their final digit), because they are multip...

Yep. A typo in translating from my scratch pad to the pc
Corrected the original post.

Also, here is a tip for word problems: Never use complex or confusing variable names.
It helps in the long run, and also avoids silly mistakes.

My 2 cents ...

Hallie has only nickels,dimes and quarters in her pocket.If she has atleast 1 of each kind of coin and has a total of $2.75 in change,how many nickels does she have? (1)She has a total of 21 coins,with twice as many dimes as nickels. (2)She has $1.50 in quarters. Note: 1 Nickel = 5 Cents 1 Dime = 1...