Home
Class 7
MATHS
How much is 30% of 840 grams....

How much is 30% of 840 grams.

Promotional Banner

Topper's Solved these Questions

  • RATIO

    JNAN PUBLICATION|Exercise EXAMPLE|52 Videos
  • SQUARE ROOT FOR FRACTION

    JNAN PUBLICATION|Exercise EXAMPLE|79 Videos

Similar Questions

Explore conceptually related problems

How much is 8% of Rs. 25

How much is natural forest?

If the price of a pen is 30% of Rs. 44 and the price of a book is 44% of Rs. 30 then

In how much time rs. 6400 will amount Rs. 6561 at the rate of 5% compound interest when interest is compounded quaterly?

How much charge is to be given to a sphere of radius 30 cm so that its surface density of charge will be 2/pi CGS unit?

A first order reaction, which is 30% complete in 30 min has a half-life period of -

The H^+ ion concentration of 0.2 M CH_3COOH which is 30% dissociated is

A manufacturer has 600 litres of a 12% solution of acid. How many litres of a 30% acid solution must be added to it so that acid content in the resulting mixture will be more than 15% but less than 18%?

A first order reaction takes 46 min for its 99% completion . How much time did it take for its 75% completion -

JNAN PUBLICATION-REVISION OF PREVIOUS KNOWLEDGE-EXAMPLE
  1. 30 students of my class were present. Total number of students in our ...

    Text Solution

    |

  2. Let's find 12frac(1)(2) % of Rs. 2 is equal to how much paise.

    Text Solution

    |

  3. How much is 30% of 840 grams.

    Text Solution

    |

  4. How much is 8% of Rs. 25

    Text Solution

    |

  5. What percent is 55 germs of 5kg.

    Text Solution

    |

  6. What percent is Rs. 1.25 or Rs 5

    Text Solution

    |

  7. What percent is 16 L. of 1000 L.

    Text Solution

    |

  8. frac(1)(5)th part of a house has been painted. What percent of the hou...

    Text Solution

    |

  9. In Noorjahan's class 30% of the students are girls. There are 60 stude...

    Text Solution

    |

  10. In 120 of mixed fertilize, the amount of urea and potash are 60% and 4...

    Text Solution

    |

  11. The cost of my school exercise book was Rs. 10. Now 1 buy the same exe...

    Text Solution

    |

  12. The bus fare from Sumitra's house to school was Rs. 4. Now to travel t...

    Text Solution

    |

  13. Due to the increase in the price of sugar, the amount of sugar bought ...

    Text Solution

    |

  14. Rojina worked out 90 sums in 1 day. Shefali did 65 sums at the same ti...

    Text Solution

    |

  15. Let's colour 10% of the squares red and 40% of square yellow in the sq...

    Text Solution

    |

  16. Let's try with other whole numbers, on the number line and verify (-...

    Text Solution

    |

  17. Let's try with other whole numbers, on the number line and verify (+...

    Text Solution

    |

  18. Let's find the value of On number line. (+4) -(-3)

    Text Solution

    |

  19. Now, let me find the value of (-3) - (+4) on number line.

    Text Solution

    |

  20. Let's verify on number line and put = // ne in the blank squares. (+...

    Text Solution

    |