Home
Class 10
MATHS
Two alaram clocks ring their alarms at r...

Two alaram clocks ring their alarms at regular intervals of 72 seconds and 50 seconds if they first beep together at 12 noon, at what time will they beep again for the first time?

Promotional Banner

Topper's Solved these Questions

  • QUADRATIC EQUATIONS

    AGRAWAL PUBLICATION|Exercise EXAMPLE|78 Videos

  • SAMPEL PAPER 13

    AGRAWAL PUBLICATION|Exercise EXERCISE|34 Videos

Similar Questions

Explore conceptually related problems

Two alarm clocks ring their alarms at regular intervals of 72 seconds and 50 seconds if they first beep together at 12 noon, at what time will they beep again for the first time

Two alarm clock ring their alarms at regular intervals of 50 seconds and 48 seconds. If they first beep together at 12 noon, at what time will they beep again?

Two alarm clock ring their alarms at regular intervals of 50 seconds and 48 seconds. If they first beep together at 12 noon, at what time will they beep again ?

Four bells ring at intervals of 4, 6, 8 and 14 seconds. They start ringing simultaneously at 12.00 O' clock. At what time will they again ring simultaneously?

Three bells in the bhootnath temple toll at the interval of 48, 72 and 108 second individually. If they have tolled all together at 6 : 00 AM then at what time will they toll together after 6 : 00 AM ?

The traffic lights at three different road crossings change after every 48 seconds, 72 seconds and 108 seconds respectively. If they all change simultaneously at 8 a.m . Then at what time will they again change simultanously ?

AGRAWAL PUBLICATION-REAL NUMBERS-EXAMPLE
  1. Check whether 12^n can end with the digit 0 for any natural number n.

    Text Solution

    |

  2. The product of the LCM and HCF of two natural numbers is 24. The diffe...

    Text Solution

    |

  3. Two alaram clocks ring their alarms at regular intervals of 72 seconds...

    Text Solution

    |

  4. Find the HCF of 612 and 1314 using prime factorisation.

    Text Solution

    |

  5. Write the smallest number which is divisble by both 306 and 657.

    Text Solution

    |

  6. A rational number in its decimal expansion is 327.7081. What can you s...

    Text Solution

    |

  7. In the adjoining factor tree, find the numbers m and n.

    Text Solution

    |

  8. Using prime factorisation method, find the HCF and LCM of 210 and 175.

    Text Solution

    |

  9. Prove that the number 4^n, n being a natural number, can never end wit...

    Text Solution

    |

  10. Find the two numbers which on multiplication with sqrt360 gives a rati...

    Text Solution

    |

  11. Prove that sqrt5 is an irrational number.

    Text Solution

    |

  12. Prove that 2+5sqrt3 is an irrational number, given that sqrt3 is an ir...

    Text Solution

    |

  13. Prove that sqrt2 is an irrational number.

    Text Solution

    |

  14. Find HCF and LCM of 404 and 96 and verify that HCF xx LCM =Product of ...

    Text Solution

    |

  15. Write the denominator of rational number 257/5000 in the form 2^mxx5^n...

    Text Solution

    |

  16. Three bells toll at intervals of 12 minutes, 15minutes and 18minutes r...

    Text Solution

    |

  17. Find if 987/10500 will have terminating or non-terminating (repeating)...

    Text Solution

    |

  18. On a morning walk, three people step off together and their steps meas...

    Text Solution

    |

  19. A merchant has 120 litres and 180 liters of two kinds of oil. He wants...

    Text Solution

    |

  20. Using prime factorisation, find HCF and LCM of 18,45 and 60. Check if ...

    Text Solution

    |