5 years ago average age of A,B,C,D = 45 years

5 years ago total age of A, B, C, D = 45 x 4 = 180 years

Total present age of A, B, C, D = 180 + 5x4 = 200 years

If E's present age is x years

years

A) 31 years | B) 37 years |

C) 46 years | D) 29 years |

Explanation:

Let the present age of Pinky be x years

Then the age of Mary is x - 12 years

After 3 years,

Ratio of

8x - 72 = 5x +15

=> 3x = 87

=> x = 29

=> Age of Pinky = 29 years

=> Age of Mary = 29 - 12 = 17 years

Present age of Sam = 29 + 17 = 46

Before 15 years Sam age = 46 - 15 = 31 years.

A) 68 & 44 | B) 64 & 48 |

C) 58 & 54 | D) 76 & 36 |

Explanation:

Given Karthik + Kalyan = 112

Given that when karthik is at the age of kalyan he is twice of Kalyan's age

i.e When he was 48 means Kalyan is at 24

=> Present age of Kalyan is 48

And that of Karthik is 112 - 48 = 64

A) 2 yrs | B) 4 yrs |

C) 3 yrs | D) 5 yrs |

Explanation:

29 x 2 = 58

20 x 3 = 60

-----------

2 years

Therefore, the age of child is 2 years.

A) 32 yrs | B) 29 yrs |

C) 24 yrs | D) 27 yrs |

Explanation:

Total age seven persons = (26 x 7)years

Total age of the first three persons and the last three persons are (19 x 3) years and (32 x 3) years respectively.

Age of the person sitting in the middle of the row = 26 x 7 - 19 x 3 - 32 x 3 = 182 - 57 - 96 = 29 years.

A) 36 yrs | B) 38 yrs |

C) 40 yrs | D) 42 yrs |

Explanation:

Let the mother's present age be x years.

Then, the person's present age = 2/5 x years.

(2x/5 + 8) = 1/2 (x + 8)

2(2x + 40) = 5(x + 8) => x = 40.