Question

A mixture contains (d + 24) litres of petrol and oil in a 3:5 ratio. To this, 40 litres of oil and (d - 72) litres of petrol are added, altering the ratio to 2:3 for petrol to oil. Based on this information, which of the following statements could be correct?
I. Given the stream's speed is 7 km/hr and the boat's speed in calm water is 8 km/hr, the boat takes 8 hours to travel (d + 16) km downstream.
II. When 5582 is divided by (d + 4), the remainder is 72.
III. (d + 21) is a perfect square.

A Only III
B Only I
C Only II and III
D Only II and I
E only II
Practice Next

More Mixture Questions

Hey! Ask a query