# Bank PO Questions

A) 55% | B) 65% |

C) 75% | D) 85% |

Explanation:

Let original radius = R.

New radius = =

Original area = and new area =

Decrease in area = = 75%

A) 0.754 | B) 0.854 |

C) 0.954 | D) 0.654 |

Explanation:

log 27 = 1.431

3 log 3 = 1.431

log 3 = 0.477

log 9 = = 2 log 3 = (2 x 0.477) = 0.954

A) 10000 | B) 20000 |

C) 40000 | D) 50000 |

Explanation:

Let sum=Rs.x

C.I. when compounded half yearly =

C.I. when compounded annually =

=> x=20000

A) 30 | B) 40 |

C) 50 | D) 60 |

Explanation:

Let the side of the square(ABCD) be x meters.

Then, AB + BC = 2x metres.

AC = = (1.41x) m.

Saving on 2x metres = (0.59x) m.

Saving % = = 30% (approx)

A) 11pm | B) 12pm |

C) 1pm | D) 2pm |

Explanation:

Time from 5 am. on a day to 10 pm. on 4th day = 89 hours.

Now 23 hrs 44 min. of this clock = 24 hours of correct clock.

356/15 hrs of this clock = 24 hours of correct clock

89 hrs of this clock = (24 x 31556 x 89) hrs of correct clock.

= 90 hrs of correct clock.

So, the correct time is 11 p.m.