# NSO Level 1- Science Olympiad (SOF) Class 8: Questions 25 - 32 of 1175

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## Question 25

### Question

MCQ▾A mixture of 36 litres contains wine and water in the proportion , How much wine must be added to it so that the ratio of wine to water may be ?

### Choices

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

a. | 16 | |

b. | 8 | |

c. | 10 | |

d. | 12 |

## Question 26

## Question 27

### Question

MCQ▾Find the smallest number of five digits exactly divisible by 4,20, 22 and 25.

### Choices

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

a. | 11000 | |

b. | 12450 | |

c. | 10800 | |

d. | 10000 |

## Question 28

### Question

MCQ▾M՚s money is to R՚s money as 6: 5 and R՚s money is to Y՚s money as 5: 3. If M has ₹ 300, Y has________

### Choices

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

a. | ₹ 150 | |

b. | ₹ 145 | |

c. | ₹ 175 | |

d. | ₹ 170 |

## Question 29

### Question

MCQ▾Start with the number y. double it and then subtract 8. If the result is , the value of y is ________?

### Choices

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

a. | 11 | |

b. | 7 | |

c. | 15 | |

d. | 12 |

## Question 30

### Question

MCQ▾Four different electronic devices make a beep after every 20 minutes, 40 minutes, 1 hour, and 1 hour 30 minutes respectively. All the devices beeped together at 12 noon. They will again beep together at

### Choices

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

a. | 12 midnights | |

b. | 3 am | |

c. | 6 pm | |

d. | 5 am |