Q:

A) 6 | B) 4 |

C) 2 | D) 3 |

Answer: C) 2

Explanation:

Explanation:

Let work done by 1 man in i day be m

and Let work done by 1 boy in 1 day be b

From the given data,

4(5m + 3b) = 23

20m + 12b = 23....(1)

2(3m + 2b) = 7

6m + 4b = 7 ....(2)

By solving (1) & (2), we get

m = 1, b = 1/4

Let the number of required boys = n

6(7 1 + n x 1/4) = 45

=> n = 2.

Q:

A) 5 days | B) 6 days |

C) 10 days | D) 12 days |

0
17

Q:

A) 8 days | B) 16 days |

C) 30 days | D) 32 days |

0
19

1
12

1
22

0
37

Q:

A) 31/16 | B) 47/16 |

C) 63/16 | D) 79/16 |

0
42

0
58

Q:

A) 195/2 | B) 235/2 |

C) 225/2 | D) 215/2 |

3
78