A) 1 | B) 2 |

C) 3 | D) 5 |

Explanation:

Use unitary method:

In hours, 123 typists can type 984 paper

In 1 minute, 123 typists can type = 246 papers

In 1 minute, 1 typist can type =2 papers [ Hint hours = 4 minutes]

A) 33 yrs | B) 34 yrs |

C) 35 yrs | D) 36 yrs |

Explanation:

Total age of players in team = 22 x 11 = 242

When coach is included, total members = 12, Avg age increases by one becomes 23

Total age when coach is included = 23x12 = 276

Age of coach = 276-242 = 34 yrs.

A) 48 | B) 41 |

C) 45 | D) 43 |

Explanation:

3X + 4y = 240

by substitute through options 48 is correct

A) 22 | B) 21 |

C) 11 | D) 17 |

A) 84 km/hr | B) 96 km/hr |

C) 72 km/hr | D) 60 km/hr |

Explanation:

Let the speeds of the car, train and bus be 5x, 9x and 4x km/hr respectively.

Average speed = 5x + 9x + 4x/3 = 18x /3 = 6x km/hr.

Also, 6x = 72 => x = 12 km/hr

Therefore, the average speed of the car and train together is = = 7x = 7 x 12 = 84 km/hr.

A) 22 | B) 36 |

C) 32 | D) 26 |

Explanation:

Total number of students = 54 x 30

When arranged in rows of 45, number of rows formed are,

= 36.