CBSE Class 10 Answered
plz tell
Asked by | 28 Feb, 2010, 03:52: PM
Expert Answer
let the original speed be x km/hr
speed =dist/time
time=dist/speed
so to cover a dist of 90 kms at the speed x km/hr it would take
90/x hrs
if the spped is increased by 15 km/hr then the new speed will be (x+15) km/hr
the time taken to cover 90 km with this speed, it would take
90/(x+15) hrs
the time diff in both cases is given to be 30 min = 1/2 hrs
so ATQ,
.gif)
Answered by | 28 Feb, 2010, 05:10: PM
CBSE 10 - Maths
Asked by hanugraha | 30 May, 2010, 07:53: PM
ANSWERED BY EXPERTCBSE 10 - Maths
Asked by hanugraha | 30 May, 2010, 07:13: PM
ANSWERED BY EXPERTCBSE 10 - Maths
Asked by shobhitdc | 29 May, 2010, 04:59: PM
ANSWERED BY EXPERTCBSE 10 - Maths
Asked by ROJAAPPA | 29 May, 2010, 12:58: PM
ANSWERED BY EXPERTCBSE 10 - Maths
Asked by shobhitdc | 29 May, 2010, 10:52: AM
ANSWERED BY EXPERTCBSE 10 - Maths
Asked by devanshmudgal | 28 May, 2010, 07:31: PM
ANSWERED BY EXPERTCBSE 10 - Maths
Asked by shobhitdc | 28 May, 2010, 01:12: PM
ANSWERED BY EXPERTCBSE 10 - Maths
Asked by shobhitdc | 28 May, 2010, 01:08: PM
ANSWERED BY EXPERT
