# Bank PO Questions

A) 3/91 | B) 2/73 |

C) 1/91 | D) 3/73 |

Explanation:

In a circle of n different persons, the total number of arrangements possible = (n - 1)!

Total number of arrangements = n(S) = (15 – 1)! = 14 !

Taking three persons as a unit, total persons = 13 (in 4 units)

Therefore no. of ways for these 13 persons to around the circular table = (13 - 1)! = 12!

In any given unit, 3 particular person can sit in 3!. Hence total number of ways that any three person can sit =

n(E) = 12! X 3!

Therefore P (E) = probability of three persons sitting together = n(E) / n(S) = 12! X 3 ! / 14!

= 12!x3x2 / 14x13x12! = 6/14x13 = 3/91

A) 5 degrees | B) 10 degrees |

C) 15 degrees | D) 25 degrees |

Explanation:

Since at 4 : 20 the minute hand will be at 4 and the angle between them will be same as the distance covered in degree by the hour hand in 20 minutes.

Required angle = distance of hour hand = speed × time = × 20 =10 degrees.

A) Rs.855 | B) Rs.955 |

C) Rs.906 | D) Rs.896 |

Explanation:

Let C.P =Rs. x

Then as given, (753 - x ) = (x - 455) 2x = 1208 x = 604

There fore S.P= 150% of 604 => Rs. = Rs.906

A) February 23 | B) February 22 |

C) February 21 | D) February 27 |

Explanation:

The Central Excise Day (CED) is celebrated every year on February 23 in India to commemorate the enactment of the Central Excise and Salt Act, 1944. The Central Excise officers all over the country celebrate this day by organizing seminars, workshops, trade interactions and cultural events etc.

A) 15 metres | B) 21 metres |

C) 18 metres | D) Cannot be determined |

Explanation:

E-will be the midpoint of BC and AD

and

AE = 7.5 and DE = 7.5

AD = 7.5 + 7.5 = 15m