# NSTSE (National Science Talent Search Exam- Unified Council) Class 10: Questions 901 - 904 of 1484

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## Question number: 901

» Mathematics » Quadratic Equations

MCQ▾

### Question

If the roots of the equation are equal. Then

### Choices

Choice (4) | Response | |
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a. |
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b. |
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c. |
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d. | None of the above |

## Question number: 902

MCQ▾

### Question

The class Interval of the Class 1 - 15 is

### Choices

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

a. | 16 | |

b. | 15 | |

c. | 5 - 5 | |

d. | 1 |

## Question number: 903

» Mathematics » Triangles

MCQ▾

### Question

If then DE = ________.

### Choices

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

a. | 4.5 | |

b. | 13.5 | |

c. | 37.5 | |

d. | 7 |

## Question number: 904

MCQ▾

### Question

The probability of three coins falling all heads up when tossed simultaneously is

### Choices

Choice (4) | Response | |
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a. |
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b. |
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c. |
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d. | Question does not provide sufficient data or is vague |