Home
Class 14
MATHS
Three electronic devices make a beep aft...

Three electronic devices make a beep after every 48 sec, 72 sec and 108 sec respectively. They beeped together at 10 a.m. The time when they will next make a beep together at the earliest is
तीन इलेक्ट्रोनिक यंत्र प्रत्येक क्रमश: 48 सैकेंड, 72 सैकेंड और 108 सैकेंड के बाद बजते है। वे तीनों एक साथ पूर्वाहन 10 बजे बीप करते है। वह समय बताए जब वे अगली बार एक साथ बजेंगं?

A

`10:07:12`

B

`10:07:24`

C

`10:07:36`

D

`10:07:48`

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • INSTALLMENT

    GAGAN PRATAP |Exercise MULTIPLE CHOICE QUESTIONS|29 Videos

  • MIXTURE

    GAGAN PRATAP |Exercise Questions|54 Videos

Similar Questions

Explore conceptually related problems

An electronic device makes a beep after every 60 seconds. Another device makes a beep after every 62 seconds. They beeped together at 10 a.m . At what time will they beep together at the earliest ?

An electronic divice makes a beep after every 15 minutes , Another device makes a beep after every 20 minutes. They beeped together at 6 a.m., at what time will they next beep together ?

An electronic device makes a beep after every 60 sec. Another device makes a beep after every 62 sec. They beeped together at 10 a.m. The next time, when they would beep together at the earliest is (a) 10.30 a.m. (b) 10.31 a.m. (c) 10.59 a.m. (d) 11 a.m.

Four different electronic devices make a beep after every 30 minutes, 1 hour, 1(1)/(2) hour and 1 hour 45 minutes respectively. All the devices beeped together at 12 noon.They will again beep together at:

Three bells, toll at interval of 36 sec, 40 sec and 48 sec respectively. They start ringing together at particular time. They next toll together after:

Four different electronic devices make a beep after every 30 minutes,1 hour,1(1)/(2) hour and 1 hour 45 minutes respectively.All the devices beped together at 12 noon.They will again beped together at (a) 12 midnight (b) 3 a.m.(c) 6 a.m.(d) 9 a.m.

GAGAN PRATAP -LCM (LEAST COMMON MULTIPLE)-Multiple Choice Questions
  1. Let x be the least number divisible by 13, such that when x is divide...

    Text Solution

    |

  2. Let x be the least 4-digit number which when divided by 2,3,4,5,6 and ...

    Text Solution

    |

  3. What is the sum of the smallest number of digits, which divides by 15,...

    Text Solution

    |

  4. When 12,16,18,20 and 25 divide the least number x, the remainder in ea...

    Text Solution

    |

  5. Let x be the least number which when divided by 15,18,20 and 27, the r...

    Text Solution

    |

  6. M is the largest 4 digit number which when divided by 4, 5, 6 and ...

    Text Solution

    |

  7. The least number of 6-digit which when divide by 15, 25, 35, 42 and 70...

    Text Solution

    |

  8. Which is the largest six digit number, which when divided by 12, 15, 2...

    Text Solution

    |

  9. What least number should be deducted from 9847 so that it gives remain...

    Text Solution

    |

  10. Find the sum of digit of a smallest number which when divided by 16, 2...

    Text Solution

    |

  11. M is the largest three digit number which when divided by 6 and 5 leav...

    Text Solution

    |

  12. LCM of three natural number 150, 144 and x is 10800. How many value of...

    Text Solution

    |

  13. If the least common multiple of two numbers, 1728 and K is 5184, then ...

    Text Solution

    |

  14. Five bells ring together at the intervals of 3,5,8,9 and 10 seconds. A...

    Text Solution

    |

  15. Three electronic devices make a beep after every 48 sec, 72 sec and 10...

    Text Solution

    |

  16. Four bells starts ringing together and then ring at an interval of 24 ...

    Text Solution

    |

  17. A, B, C begin to run in the same sirection from the same point in a ci...

    Text Solution

    |

  18. From a point on circular track 5 km long A, B and C started runnin...

    Text Solution

    |

  19. तीन आदमी एक स्थान से एक साथ चलते हैं। उनके कदम क्रमशः 63 सेमी, 70 सेमी...

    Text Solution

    |

  20. If LCM (1,2,3,4 . . . . . . . . ,20)=x and LCM (1,2,3,4 . . . . . . ....

    Text Solution

    |