Write the correct answer.
One packet of biscuits requires 2 1/2 cups of flour and 1 2/3 cups of sugar Estimated total quantity of both ingredients used in 10 such packets of biscuits will be
(a) less than 30 cups
(b) between 30 cups and 40 cups
(c) between 40 cups and 50 cups
(d) above 50 cups