general Maths Puzzle

X covers a distance of 60 km in 6 hrs partly on foot at the rate of 4 km/hr and partly on a cycle at 14 km/hr. Find the distance traveled on foot.

Read Solution (Total 2)

9.6 kms.

If F is the distance travelled on foot, then

F/4 + (60-F)/14 = 6

solving it, we get
F= 9.6 kms
12 years agoHelpfull: Yes(3) No(0)

let by foot covered distance is x km in t hr time. so x/t=4km/hr eqn(1).
accordingly, by cycle distance 60-x km in time 6-t hr time. so (60-x)/(6-t)=14 eqn(2).
On solving eqn (1) & (2) x=9.6 km & t=2.4 hr. Ans. 9.6 km
12 years agoHelpfull: Yes(1) No(1)

general Other Question

Which is greater of the following two ratios given that a and b are positive.

(a/5b)/(a/6b) Or (a/6b)/(a/7b) Four litres of phenol is drawn from a can. It is then filled water. Four litres of mixture is drawn again and the bottle is again filled with water. The quantity of phenol now left in the bottle is to that of water is in the ratio 36:13. How much does the bottle hold