# NSTSE (National Science Talent Search Exam- Unified Council) Class 10: Questions 162 - 170 of 1484

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## Question 162

### Question

MCQ▾Which of the following system of equations has no solution?

### Choices

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

a. | ||

b. | ||

c. | ||

d. | All a., b. and c. are correct |

## Question 163

### Question

MCQ▾Which of the following system of equations has unique solution?

### Choices

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

a. | ||

b. | ||

c. | ||

d. | Question does not provide sufficient data or is vague |

## Question 164

### Question

MCQ▾The coordinates of the points where the line meet the

### Choices

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

a. | ||

b. | ||

c. | ||

d. |

## Question 165

### Question

MCQ▾The sum of digits of a two digit number is 8. If the digits are reversed, the number is decreased by 54. Find the number.

### Choices

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

a. | 30 | |

b. | 71 | |

c. | 62 | |

d. | 80 |

## Question 166

### Question

MCQ▾The LCM of two numbers is 160 and HCF is 4. If the sum of the number is 56, their difference is,

### Choices

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

a. | 54 | |

b. | 97 | |

c. | 27 | |

d. | 45 |

## Question 167

### Question

MCQ▾Which of the following system of equations has infinitely many solutions?

### Choices

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

a. | ||

b. | ||

c. | ||

d. |

## Question 168

### Question

MCQ▾Which of the following system of equations has no solution?

### Choices

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

a. | ||

b. | ||

c. | ||

d. | None of the above |

## Question 169

### Question

MCQ▾In , if then is________

### Choices

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

a. | 120° | |

b. | 180° | |

c. | 100° | |

d. | 150° |

## Question 170

### Question

MCQ▾If the ratio of workers to machines in a factory is W and the ratio of machines to workers is M, then W + M is,

### Choices

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

a. | Less than 1 | |

b. | Greater than 1 | |

c. | Greater than or equal to 1 | |

d. | Equals to 1 |