The 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 went up by 10%. Their new ratio is now
A. 40r:50t B. 44r : 50t C. 50r : 44t D. 44r:55t E. 55r:44t
Correct Answer: C
Explanation
Ratio of bread to sugar = r:t 25% increase in bread = \(\frac{125r}{100}\) 10% increase in sugar = \(\frac{100t}{100}\) New ratio = \(\frac{125r}{100}\):\(\frac{110t}{100}\) = 25r:22t = 50r:44t
