Home
Class 7
MATHS
If ?, 8, 30, 20 are in proportion, then ...

If ?, 8, 30, 20 are in proportion, then let's find the `1^st` term 1 st tem : 8 :: 30 : 20

Promotional Banner

Topper's Solved these Questions

  • PROPERTIES OF TRIANGLE

    JNAN PUBLICATION|Exercise EXAMPLE|2 Videos

  • RATIO

    JNAN PUBLICATION|Exercise EXAMPLE|52 Videos

Similar Questions

Explore conceptually related problems

If square , 8, 30, 20 are n proportion, then find the 1^(st) term.

If 1^st term is 3,2nd term is 6, 3^rd term is 7, then let's find the 4^th term.

Do ourselves - Let's find if the following numbers are in proportion or not. If they are in proportion, let's write all the possible proportions with them. (a) 3, 14, 4, 20

Now, if 8, *, 18 are in continued proportion, find *(missing term), positive term i.e. to find the mean.

The mean - proportional of 1/2 " and " 1/8 is

Find the 20th and nth term of the GP. 5/2, 5/4, 5/8 ………

The sum of the 1st m terms of an AP is n and the sum of the 1st n terms of the same AP is m. Find the sum of the 1st (m + n) terms of the AP.

If 1^(st) term is 3, 2^(nd) term is 6, 3^(rd) term is 7, then find the 4^(th) term.

Find the 20th term from the end of the AP:3, 8, 13, ..., 253.

Let the sum of the three terms of a G.P. is 14. If 1 is added to the 1st and the 2nd term and 1 is subtracted from the 3rd term, then they will be in A.P. The value of the smallest term is -

JNAN PUBLICATION-PROPORTION-EXAMPLE
  1. Find whether the sets of numbers are in continued proportion, and writ...

    Text Solution

    |

  2. Find whether the sets of numbers are in continued proportion, and writ...

    Text Solution

    |

  3. Find whether the sets of numbers are in continued proportion, and writ...

    Text Solution

    |

  4. If 1^st term is 3,2nd term is 6, 3^rd term is 7, then let's find the ...

    Text Solution

    |

  5. If ?, 8, 30, 20 are in proportion, then let's find the 1^st term 1 st ...

    Text Solution

    |

  6. If in a proportion 3rd term is missing that is 5 : 8 ::** : 64. Let's ...

    Text Solution

    |

  7. Sunit bought 2 exercise books for Rs. 14. Let's find how much he will ...

    Text Solution

    |

  8. A jeep covers a distance of 32 km. in 8 hours keeping the same speed, ...

    Text Solution

    |

  9. 720g of cromium is needed to make 6kg of stainless steel. Find how muc...

    Text Solution

    |

  10. There are 3 litres of syrup in 10 litres of a soft drink (sherbat). Fi...

    Text Solution

    |

  11. 8 men can do a piece of work in 15 days. Find in how many days will 10...

    Text Solution

    |

  12. 12 men had provision of food for 20 days. Let's find if there are 40 m...

    Text Solution

    |

  13. Arunbabu used 16 ploughs to cultivate his whole land in 10 days. Find,...

    Text Solution

    |

  14. In a flood relief camp, there is a provision of food for 4000 people f...

    Text Solution

    |

  15. The cost of 3 umbrellas or 1 chair is Rs. 600. Let's calculate the pri...

    Text Solution

    |

  16. In two types of 'sharbat' the ratio of syrup and water are 2 : 5 and 6...

    Text Solution

    |

  17. When water freezes into ice, its volumne increase by 10%. Let's find t...

    Text Solution

    |

  18. My age is 12 years and my father's age is 42 years. Let's find the rat...

    Text Solution

    |

  19. The ratio of story books and text books of preetam is 2:5. If preetam ...

    Text Solution

    |

  20. For making a flower garland of hibiscus and Indian marigold, 105 of th...

    Text Solution

    |