# NCO- Cyber Olympiad (SOF) Class 10: Questions 49 - 54 of 461

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## Question 49

### Question

MCQ▾If DATE is written in a certain code as 4567, DRIVE as 41237, what will be the 5^{th} digit for DERIVED in the same code?

### Choices

Choice (4) | Response | |
---|---|---|

a. | 7 | |

b. | 3 | |

c. | 2 | |

d. | 4 |

## Question 50

### Question

MCQ▾A mathematics game uses a set of 56 cards. There are 5 cards for each of the numerals 0 - 9 and 6 wild cards. If the cards are shuffled, what is the probability that the top card is a wild card?

### Choices

Choice (4) | Response | |
---|---|---|

a. | ||

b. | ||

c. | ||

d. |

## Question 51

### Question

MCQ▾If each number in a set of six numbers is decreased by 2, then the arithmetic mean (average) of the original six numbers

### Choices

Choice (4) | Response | |
---|---|---|

a. | Remains the same | |

b. | Is increased by 2 | |

c. | Is decreased by 2 | |

d. | Is decreased by 4 |

## Question 52

### Question

MCQ▾The mean weight of 90 students in a class is 70 kg. The mean weight of boys is 80 kg while that of the girls is 60 kg. The number of boys and girls are

### Choices

Choice (4) | Response | |
---|---|---|

a. | 35,55 | |

b. | 45,45 | |

c. | 25,65 | |

d. | 60,30 |

## Question 53

### Question

MCQ▾Direction: In the following question various faces of a cube are shown. Which number is opposite to 1?

### Choices

Choice (4) | Response | |
---|---|---|

a. | 5 | |

b. | 4 | |

c. | 2 | |

d. | 3 |

## Question 54

### Question

MCQ▾If in a certain code . What is the code for ‘CURIOUS’ ?

### Choices

Choice (4) | Response | |
---|---|---|

a. | 6742578 | |

b. | 6732578 | |

c. | 6742758 | |

d. | 7642587 |