Q:

A) 80 kms | B) 60 kms |

C) 45 kms | D) 32 kms |

Answer: B) 60 kms

Explanation:

Explanation:

Let 'd' be the distance and 's' be the speed and 't' be the time

d=sxt

45 mins = 3/4 hr and 48 mins = 4/5 hr

As distance is same in both cases;

s(3/4) = (s-5)(4/5)

3s/4 = (4s-20)/5

15s = 16s-80

s = 80 km.

=> d = 80 x 3/4 = 60 kms.

5
879

4
1162

Q:

A) 12 hours | B) 23 hours |

C) 17 hours | D) 18 hours |

5
1056

Q:

A) 4 hours 20 min | B) 5 hours 20 min |

C) 5 hours | D) 4 hours |

2
915

1
802

3
933

Q:

A) 120 km/h | B) 125 km/h |

C) 115 km/h | D) 110 km/h |

4
807

2
857