Question 3
Commercial ArithmeticThe ratio of the price of a loaf of bread to the price of a packet of sugar in 1975 was r:t. In 1980 the price of a loaf went up by 25% and that of a packet of sugar by 10%. Their new ratio is now
- A.40r : 50t
- B.44r : 50t
- C.50r : 44t
- D.55r : 44t
- E.44r : 55t.
Show the answer and explanation
Answer: C (50r : 44t)
Explanation
The new prices are 1.25r and 1.10t. 1.25r : 1.10t = 125r : 110t = 50r : 44t.