Laxmi and Prasanna set on a journey. Laxmi moves northwards at a speed of 40kmph and Prasanna moves southward at a speed of 38 kmph. How far will be Prasanna from Laxmi after 60 minutes ?
Choose the most appropriate option: A) 11 B) 50 C) 78 D) 27 E) 18
Explanation:   We know 60 min = 1 hr   Total northward Laxmi's distance = 40kmph x 1hr = 40 km   Total southward Prasanna's distance = 38kmph x 1hr = 38 km   Total distance between Prasanna and Laxmi is = 40 + 38= 
<gadget id="calculator">40 + 38</gadget>
<output>78</output>
78 km.   Answer: 78
<result>C</result>
Laxmi and Prasanna set on a journey. Laxmi moves northwards at a speed of 40kmph and Prasanna moves southward at a speed of 38 kmph. How far will be Prasanna from Laxmi after 60 minutes ?