Extension of this question

So what about:

John spends 2/5 of his pocket money on a Football and 1/4 of his pocket money on sweets. If he has $1.75 left, how much pocket money did he have in the beginnning.

I got to 25% and 40% respectively of the sum has been spent, leaving a balance of $1.75. However, I couldn't break it down...can anyone help please ?

Nick

Quote:

Originally Posted by

**WWTL@WHL** Hey, Wrath :)

You're given all the information you need in order to work the question out. I've highlighted the key bits.

__Hints:__ (Try to work it out using this)

If 27% of shrubs are mangroves, what percentage are palmettos?

Now if 511 scrubs are just made up by the percentage of palmettos, 100% if scrubs are made up by?

__Solution__

27% are mangroves means that 73% are palmettos. We know that there are 511 palmettos, so if you call the total number of shrubs on attack $\displaystyle x$ then

$\displaystyle 0.73 x = 511 $

so x = 700.