Q:

A) 3 hrs 15 min | B) 3 hrs 45 min |

C) 4 hrs 15 min | D) 4 hrs 1 |

Answer: B) 3 hrs 45 min

Explanation:

Explanation:

Time taken by one tap to fill **half of the tank** = 3 hrs.

Part filled by the four taps in 1 hour =4*1/6 =2/3

Remaining part =$\left(1-\frac{1}{2}\right)=\frac{1}{2}$

$\frac{2}{3}:\frac{1}{2}::1:x$

=> x = $\left(\frac{1}{2}*1*\frac{3}{2}\right)=\frac{3}{4}$

So, total time taken = 3 hrs. 45 mins.

Q:

A) 16hours | B) 9hours |

C) 10hours | D) 15hours |

1
739

3
680

0
511

Q:

A) 1 hour | B) 1 hour 15 minutes |

C) 1 hour 25 minutes | D) 1 hour 30 minutes |

2
782

Q:

A) 1 hour | B) 45 minutes |

C) 30 minutes | D) 50 minutes |

0
649

Q:

A) 2h 30 min | B) 2h |

C) 3h | D) 2h 40 min |

2
852

2
580

Q:

A) 1 hour | B) 1 hour 30 min |

C) 1 hour 20 min | D) 1 hour 15 min |

4
756