MBA
Exam
rahul takes 6 hours more than pathak to cover a distance of 540 km.if instead,rahul doubles his speed he would reach the destination one and half hours before pathak.find pathak speed?pl. provide sol. 1) 36kmph 2) 60kmph 3) 45kmph 4) 40kmph
Read Solution (Total 2)
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- If x is initial speed of rahul, then
540/x = 540/2x + 15/2
(540/x)*(1/2) = 15/2
540/x=15
x=540/15 = 36 km/hr
so rahul take 540/36 = 15 hrs to cover 540 kms
Pathak takes 15-6= 9 hrs to cover 540 kms.
speed of pathak = 540/9 = 60 kmph
- 11 years agoHelpfull: Yes(0) No(1)
- d =s*t
Tr =Tp+6
d= sr*(tp+6)-----------------------1
also
d= 2sr *(tp-1.5)-----------2
equate 1 and 2
tp =9 , then sp =540/9 =60 km/hr; - 8 years agoHelpfull: Yes(0) No(0)
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