A boat covers a distance of 30 kms in 2 ½ hours running down streams. While returning, it covers the same distance in 3 ¾ hours. What is the speed of the boat in kmph?
Choose the correct choice from the following options
A) 12	B) 8	C) 14	D) 10	E) 15
b+s=30*2/5   b-s=30*4/15   solving ths we get value of b   b=10   ANSWER:10
<result>D</result>
A boat covers a distance of 30 kms in 2 ½ hours running down streams. While returning, it covers the same distance in 3 ¾ hours. What is the speed of the boat in kmph?