**RRB Group D 2018 – CBT Examination**, conducted in online Mode, has: a duration of 90 Min, a total of 100 questions and consists of 4 sections, namely – ** Mathematics, General Intelligence & Reasoning, General Science, General Awareness on Current affairs**. Candidates must clear the cut-off in all the sections to qualify for further stages.

S.No | Sections | No. of Questions | Time allocated |
---|---|---|---|

1 | Mathematics | 100 | 90 minutes |

2 | General Intelligence and Reasoning | ||

3 | General Science | ||

4 | General awareness on current affairs |

Below mentioned are the different categories of expected questions in the **RRB Group D Mathematics** section of CBT Exam.

S.No | Topics |
---|---|

1 | Number system |

2 | BODMAS |

3 | Decimals, Fractions |

4 | LCM, HCF |

5 | Ratio and Proportion |

6 | Percentages, Mensuration |

7 | Time and Work; Time and Distance |

8 | Simple and Compound Interest |

9 | Profit and Loss |

10 | Algebra |

11 | Geometry and Trigonometry |

12 | Elementary Statistics |

13 | Square Root |

14 | Age Calculations |

15 | Calendar & Clock |

16 | Pipes & Cistern |

There shall be negative marking for incorrect answers in the CBT.

- A. 99,840

B. 99,900

C. 99,960

D. 99,990

Answer: Option C

**2. Find the lowest common multiple of 24, 36 and 40.**

- A. 120

B. 240

C. 360

D. 480

Answer: Option C

**3. The sum of three numbers is 98. If the ratio of the first to second is 2 :3 and that of the second to the third is 5 : 8, then the second number is:**

- A. 20

B. 30

C. 48

D. 58

Answer: Option B

**4. Sakshi can do a piece of work in 20 days. Tanya is 25% more efficient than Sakshi. The number of days taken by Tanya to do the same piece of work is:**

- A. 15

B. 16

C. 18

D. 25

Answer: Option B

**5. Can you find out what day of the week was January 12, 1979?**

- A. Monday

B. Sunday

C. Friday

D. Saturday

E. Tuesday

Answer: Option C

**RRB Group D Mathematics – Study Guide** – **Click Here**