A) If only conclusion I follows | B) If only conclusion II follows |

C) If neither I nor II follows | D) If both I and II follow |

Explanation:

Which factors influence the food processing industry cannot be determined from the statement. Hence I does not follow. II does not follow because the statement doesn't give any clue about the industry's centrality to our lives.

A) Only a follows | B) Both a & b follows |

C) Only b follows | D) Neither a nor b follows |

Explanation:

The statement mentions that chances of heart ailments are greatly reduced by a regular half-hour exercise. So, a follows. However, it talks of only reducing the probability which does not mean that persons involved in sedentary jobs shall definitely suffer from heart ailments. So, b does not follow.

Hence, concusion a only follows the given statement.

A) All a,b and c follows | B) Only a and c follows |

C) Either b alone or a & b follows | D) None |

Explanation:

From statement (b)

Average of 11 players = 11 x 28 = 308

Average of 10 players = 10 x 27.3 = 273

Age of captain = 308 - 273 = 35.

From the Statement (a) we can say that captain's age (C) = y + 11 ...(1) where y-youngers age

From the statement (c),the averge age of 3groups of 3players each was given,

It means total 9 players age was given indirectly,

1st group: 25 x 3 = 75

2nd group: 28 x 3 = 84

3rd group: 30 x 3 = 90

Total is 75 + 84 + 90 = 249

Now {C + Y + (9 players age sum)}/11 = 28

Y + 11 + Y + (249) = 28 x 11=308

2Y+260=308

2Y = 308-260 = 40 ==> Y=24 ==> C(captain's age)= Y+11 = 24+11 = 35

Therefore, statement b alone or a & c only is the answer.

A) Neither a nor b is sufficient | B) Either a or b is sufficient |

C) Both a & b are sufficient | D) a alone is sufficient while b alone is not sufficient |

Explanation:

From a, we conclude that Vinitha is the wife of Ragini's mother's only son i.e. Ragini's brother. Thus, Vinitha is Ragini's sister-in-law.

From b, we conclude that Vinitha is the cousin of Ragini's husband, which implies that Vinitha is Ragini's sister-in-law.

A) b alone is sufficient while a alone is not sufficient | B) a alone is sufficient while b alone is not sufficient |

C) Both a and b are sufficient | D) Neither a nor b is sufficient |

Explanation:

From both a and b, we find that Kalyan is (25 - 15) = 10 years older than his brother, who was born in 1991. So, Kalyan was born in 1981.

A) a only | B) a and b |

C) b only | D) b and c |

Explanation:

Since half of the four children are girls, two must be boys. It is not clear which children have blue or brown eyes. So only statement (b) follows.