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In a village the number of houses and the number of flats are in the ratio 7 : 4 the number of flats and the number of bungalows are in the ratio 8 : 5 There are 50 bungalows in the village. How many houses are there in the village?

Good question! This is exactly the kind of question that could come up on the GCSE non-calculator paper. I think the main thing that makes this question tricky is sifting out the information and figuring out...
EJ
Answered by Ellie J. • Maths tutor
22291 Views

The point P has coordinates (3,4), Q has the coordinates (a,b), a line perpendicular to PQ is given by the equation 3x+2y=7. Find an expression for b in terms of a

Firstly, let's have a look through the question to find the key words and write down any equations you might need. Perpendicular means the two lines cross and meet at a right angle, we also have an equation ...
CB
Answered by Charles B. • Maths tutor
6855 Views

What is the difference between public goods and externalities?

Public goods are non-excludable and non-rival - i.e. you cannot be stopped from consuming the good and this does not affect others' consumption Externalities are benefits/costs to a third party outside the m...
NS
3028 Views

What are the patterns of global urbanisation?

Developed countries: more urbanised - 80% of USA population in 2%Developing: growing at a faster rate - Rwanda fastest urbanisation rate in the world: 9% Leading to problems with waste management, resource c...
NS
2212 Views

How should you start your introduction for your PS?

This can be done in many ways. This was mine: During my visit to South Africa two years ago I was struck by the economic divide between neighbourhoods. Adjacent to luxurious gated communities lay areas of de...
NS
2620 Views