Pradeep starts from a point A and walks on a road towards B. Revanath starts a little later also from A, and covers a distance of 9 km to catch up with Pradeep. If Revanth had waited till Pradeep had covered 4 km more before starting from A, he would need to cover 21 km to catch up with Pradeep. When Revanth reaches B, which is actually at a distance of only 18 km from A, how many kilometers from B is Pradeep?
option
a) 2
b) 3
c) 2.5
d) 3.5

• how did u get 14.571km plz explain @aqib
• 11 years agoHelpfull: Yes(4) No(1)
• let Revanth takes t time to reach 21km.
  so in t time Pradeep will reach 17km as he started before Pradeep.
  so to reach 18km revanth will take((t/21)*18) time.
  so in ((t/21)*18) time Pradeep will cover (14.571)km.
  so 3.5km km from B is Pradeep.
• 11 years agoHelpfull: Yes(3) No(3)
• pls explain
• 11 years agoHelpfull: Yes(1) No(1)
• speed of pradeep/speed of revanath=17/21=distance traveled by pradeep/distance traveled by ravenath => d=14.571
• 11 years agoHelpfull: Yes(0) No(1)
• Answer is 3 km
• 1 year agoHelpfull: Yes(0) No(0)