The ratio 3:5 can be written in the form 1:n

The diameter of a circular chip is doubled to use in a new board game. the area of the new chip will be

Money off coupons have been circulated to 300 households. only 2/5 of these were redeemed (used) in the local supermarket to get a free shampoo. what fraction of coupons were unused? (ps: write how you got the answer)

Determine whether the statement is true or false