Look at this series: 72, 76, 73, 77, 74, __, 75,… What number should fill the blank?

a. |
70 |

b. |
71 |

c. |
75 |

d. |
78 |

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Look at this series: 72, 76, 73, 77, 74, __, 75,… What number should fill the blank?

a. |
70 |

b. |
71 |

c. |
75 |

d. |
78 |

Test ID: 574

Source: 501 challenging logic & reasoning problems

d. This series alternates the addition of 4 with the subtraction of 3.