A rocket travels at a speed 15000m/s. Express speed in km/h
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15000m=15km
in 1 sec rocket travel 15 km
then for 1 hour = 60 min ×60sec =3600
for 1 hour =3600×15=54000kmph
in 1 sec rocket travel 15 km
then for 1 hour = 60 min ×60sec =3600
for 1 hour =3600×15=54000kmph
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