A man's speed with the current is 15 km/hr and the speed of the current is 2.5 km/hr. The man's speed against the current is:  Choose the correct answer.
A) 8.5 km/hr B) 10 km/hr C) 12.5 km/hr D) 9 km/hr E) 8 km/hr
Man's speed with the current = 15 km/hr   =&gt; speed of the man + speed of the current = 15 km/hr   speed of the current is 2.5 km/hr   Hence, speed of the man = 15 - 2.5= 
<gadget id="calculator">15 - 2.5</gadget>
<output>12.5</output>
12.5 km/hr   man's speed against the current= speed of the man - speed of the current   = 12.5 - 2.5= 
<gadget id="calculator">12.5 - 2.5</gadget>
<output>10</output>
10 km/hr   ANSWER:10 km/hr
<result>B</result>
A man's speed with the current is 15 km/hr and the speed of the current is 2.5 km/hr. The man's speed against the current is: