One day, Joe's old car used 5/8 of a quart of oil. The next day, it used only 2/3 as much oil. On day three, the old car used 1 $\frac { 1 } { 4 }$
Quarts of oil! But on day four, it used only 60% as much as it did on day three. How many quarts of oil did the car use on day four? Which computation will answer the question?
A) $1 \frac { 1 } { 4 } + 0.60$

B) $1 \frac { 1 } { 4 } - 0.60$

C) $\frac { 3 } { 5 } \times 1 \frac { 1 } { 4 }$ $1 \frac { 1 } { 4 } \times 0.60$

D) $1 \frac { 1 } { 4 } \div \frac { 60 } { 100 }$

Question

One day, Joe's old car used 5/8 of a quart of oil. The next day, it used only 2/3 as much oil. On day three, the old car used 1 $\frac { 1 } { 4 }$
Quarts of oil! But on day four, it used only 60% as much as it did on day three. How many quarts of oil did the car use on day four? Which computation will answer the question?
A) $1 \frac { 1 } { 4 } + 0.60$

B) $1 \frac { 1 } { 4 } - 0.60$

C) $\frac { 3 } { 5 } \times 1 \frac { 1 } { 4 }$  $1 \frac { 1 } { 4 } \times 0.60$

D) $1 \frac { 1 } { 4 } \div \frac { 60 } { 100 }$

Quizplus · Accepted Answer

To find the amount of oil used on day four, we multiply the amount used on day three (1 1/4 quarts) by 60% (or 0.60). This is represented by the operation $1 \frac { 1 } { 4 } \times 0.60$, which is part of choice C.

One Day, Joe's Old Car Used 5/8 of a Quart 14\frac { 1 } { 4 }41​

One Day, Joe's Old Car Used 5/8 of a Quart $\frac { 1 } { 4 }$