- Bank PO Maths Quiz 43
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- Bank PO Maths Quiz 2
- Bank PO Maths Quiz 1

Important for :

1

2

E

Let x, y and z are the one day’s work of Trump, Putin and Jinping respectively.According to the question,

⇒ 3 × (x + y + z) = 37% of the work

⇒ 7 × (x + y) = 63%

⇒ x + y = 9%

∵ The ratio of efficiency of Trump and Putin is 4 : 5,

∴ 5x = 4y and x = 4%, y = 5% work per day.

It implies Trump can complete the job and in 25 days and Putin in 20 days.

In 3 days (x + y + z) do 37% of the work

Out of this Trump and Putin would do 27% work = (3 × 9%) of the work.

Remaining work = 37% – 27% = 10% (done by Jinping in 3 days)

∴ The work of z = | 10 | = 3.33% work per day |

3 |

∴ Jinping is the slowest and he would do the work in 30 days.

Hence, option E is correct.

3

E

Let the initial investment of JK be ‘7m’∴ The initial investment of JP will be ‘2m’

Also, let the total income generated in two years be 4n

Though the profit for the two years is divided equally between them,

∴ JK’s share in income will be = 2n

And JP’s share in income will be = 2n

Now to equalise initial investment,

⇒ 2m + | 3n | = 7 m |

2 |

⇒ | 3n | = 5 m |

2 |

⇒ | m | = | 3 |

n | 10 |

∴ Ratio of initial investment and total income

= | 9m | = | 27 |

4n | 40 |

Hence, option E is correct.

4

5

C

Let Amon’s age = A, Bevan’s age = B, and Chan’s age = CThen, according to the question,

⇒ | A | = | 3 | ................(i) |

C | 4 |

⇒ | B + 5 | = | 4 | ................(iI) |

C – 1 | 3 |

⇒ 4 × (C – A) = B + 1 ------------------(iii)

After solving these equations,

⇒ A = 12

⇒ C = 16

Average of ages of Amon and Chan = | 12 + 16 | = 14 |

2 |

Hence, option C is correct.