Home
Class 7
MATHS
If P=3Q = 7R, find P:Q:R....

If P=3Q = 7R, find P:Q:R.

Text Solution

Verified by Experts

The correct Answer is:
`21:7:3`
Promotional Banner

Topper's Solved these Questions

  • RATIO AND PROPORTION

    ICSE|Exercise Warm-up-Exercise |2 Videos

  • RATIO AND PROPORTION

    ICSE|Exercise Challenge |1 Videos

  • RATIO AND PROPORTION

    ICSE|Exercise Exercise 8.1|33 Videos

  • PROPERTIES OF TRIANGLES

    ICSE|Exercise Exercise 18B|10 Videos

  • RATIONAL NUMBERS

    ICSE|Exercise REVISION EXERCISE (FILL IN THE BOXES).|4 Videos

Similar Questions

Explore conceptually related problems

If P:Q = 2:9 and Q :R = 3:7, find P:R.

If P + Q = R and P - Q = S, prove that R^2 + S^2 = 2(P^2 + Q^2)

In Figure, side Q P\ a n d\ R Q of P Q R are produced to point S\ a n d\ T respectively. If /_S P R=135^0a n d\ /_P Q T=110^@ , find /_P R Q

sides Q P and R Q of P Q R are produced to point S and T respectively. If /_S P R=135^0 and /_P Q T=110^0, find /_P R Qdot

If p = 4,q = 3 and r = -2, find the values of : (3pq+2qr^(2))/(p+q-r)

If P+Q=R and |P|=|Q|= sqrt(3) and |R| ==3 , then the angle between P and Q is

In Figure, S and T are points on the sides P Q and P R respectively of /_\ P Q R such that P T=2c m , T R=4c m and S T is parallel to Q R . Find the ratio of the areas of /_\P S T and /_\P Q R .

If a!=p ,b!=q ,c!=r and |[p, b, c ],[a, q, c ],[a ,b, r]|=0, then find the value of p/(p-a)+q/(q-b)+r/(r-c)dot

In P Q R , right-angled at Q ,\ P Q=3c m and P R=6c m . Determine /_P and /_R .

In Figure, P S=Q R\ a n d\ /_S P Q=/_R Q Pdot Prove that P Q S\ ~=\ Q P R ,\ P R=Q S\ a n d\ /_Q P R=\ /_P Q S

ICSE-RATIO AND PROPORTION-Revision Exercise
  1. Write the following ratios in their simplest form. a. 36:81 b. 48:108 ...

    Text Solution

    |

  2. Write three equivalent ratios for each of the following: 2:7 3:7 5:6 4...

    Text Solution

    |

  3. Find the ratio of: a. 455 mL to 1.5 L. b. 45 min to 3(1)/(30) h.

    Text Solution

    |

  4. A cake recipe uses 150 g sugar in 400 g of flour. Find the ratio of: a...

    Text Solution

    |

  5. Divide: a. रु 600 between A, B, and C in the ratio 2:3:7 b. रु 780 a...

    Text Solution

    |

  6. Arrange the given ratios as indicated: a. In ascending order: i. 2...

    Text Solution

    |

  7. Arrange the given ratios as indicated: a. In ascending order: In d...

    Text Solution

    |

  8. If P=3Q = 7R, find P:Q:R.

    Text Solution

    |

  9. If P:Q = 2:9 and Q :R = 3:7, find P:R.

    Text Solution

    |

  10. Given that x:y= 2:7, find 3x + 4y: 2x + 5y.

    Text Solution

    |

  11. Two numbers are in the ratio 4:7 and their LCM is 84. Find the two num...

    Text Solution

    |

  12. Jyoti's and Geeta's present ages are in the ratio of 1:4. After 16 yea...

    Text Solution

    |

  13. Two bags of potatoes are such that the weight of one bag is 5.5 times ...

    Text Solution

    |

  14. A cleansing agent is mixed with water in the ratio 1:7. In 400 L of so...

    Text Solution

    |

  15. In a mixed fruit drink, orange juice, apple juice, and pineapple juice...

    Text Solution

    |

  16. Yellow, blue, and white colours are mixed in the ratio 7:6:3. How much...

    Text Solution

    |

  17. Find a such that 3, a, 9, and 12 are in proportion.

    Text Solution

    |

  18. What should be added to each of the numbers 8, 32,and 1,11 so that the...

    Text Solution

    |

  19. Are the following numbers in continued proportion? a. 9, 12, 16 b. 4, ...

    Text Solution

    |

  20. A bag has 50, 100, and 200 notes in the ratio 3:7:5. If there are 90 n...

    Text Solution

    |