A) KMNL | B) JLMK |

C) PRSQ | D) VWYZ |

Explanation:

K+2 M+1 N-2 L, P+2 R+1 S-2 Q, V+1 W+2 Y+1 Z, J+2 L+1 M-2 K and W+2 Y+1 Z-2 X.

Except VWYZ, all the other groups follow similar pattern.

A) 360 lit | B) 480 lit |

C) 320 lit | D) 420 lit |

Explanation:

1/k - 1/20 = -1/24

k = 120

120 x 4 = 480

Therefore, the capacity of the cistern is 480 liters.

A) 20% p.a | B) 15% p.a |

C) 18% p.a | D) 24% p.a |

Explanation:

Rs.1440 - 1200 = Rs.240 is the interest on Rs.1200 for one year.

Rate of interest = (100 x 240) / (1200) = 20% p.a

A) 1hr | B) 1 hr 20 min |

C) 1 hr 10 min | D) 50 min |

Explanation:

Let the distance and original speed be 'd' km and 'k' kmph respectively.

d/0.8k - d/k = 20/60 => 5d/4k - d/k = 1/3

=> (5d - 4d)/4k = 1/3 => d = 4/3 k

Time taken to cover the distance at original speed

= d/k = 4/3 hours = 1 hour 20 minutes.

A) 45 | B) 48 |

C) 360 | D) 36 |

Explanation:

16200 =

A perfect cube has a property of having the indices of all its prime factors divisible by 3.

Required number = = 9x5 = 45.