Question

Out of the 95 travellers interviewed ,7 travelled by bus and train only,3 by train and car only and 8 travelled by all three means of transport.The number x of travellers who travelled by bus only was equal to the number who travelled by bus and car only.if 47 people travelled by bus and 30by train calculate the value of x and the number of people who travelled by at least two means

Answer 1

Just fill in all the given data in your Venn diagrams, they fill in nicely.
I got my x to be 16.
the only missing part at the end seems to be the number "by car only",
but remember that everything has to add up to 90, so you can find that as well.

Answer 2

Ans me