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Q1. | The ratio of the present ages of two brothers is 1 : 2 and 5 years back, the ratio was 1 : 3. What will be the ratio of their ages after 5 years? |

A. | 1 : 4 [Wrong Answer] |

B. | 2 : 3 [Wrong Answer] |

C. | 3 : 5 [Correct Answer] |

D. | 5 : 6 [Wrong Answer] |

View Answer
Explanation:-
Answer : CDiscuss it below :Let the two brothers be X and YGiven: The ratio of the present ages of X and Y is 1:2 Let the present age of X be x years Let the present age of Y be 2x years ∴ X : Y ⇒ x : 2x Given : 5 years back (before), the ratio was 1:3 x-5 = 1 : 2x-5 = 3 x-5/2x-5 = 1/3 3 (x-5) = 2x-5 3x-15 = 2x-5 ⇒ 3x-2x = -5 +15 ⇒ x = 10 To find : The ratio of their ages after 5 years X+5 = ? : 2x + 5 = ? 10 + 5 = 15 : 2(10)+5 = 25 ⇒ 15 : 25 ⇒ 3 : 5 !! OOPS Login [Click here] is required to post your answer/resultHelp other students, write article, leave your comments |

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