# NSTSE (National Science Talent Search Exam- Unified Council) Class 10: Questions 856 - 862 of 1484

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## Question 856

### Question

MCQ▾In a single throw of two dice, the probability of getting a sum of 7 is

### Choices

Choice (4) | Response | |
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a. | ||

b. | ||

c. | ||

d. | All of the above |

## Question 857

### Question

MCQ▾The probability for a randomly selected number out of 1, 2,3, 4, … . , 30 to be a prime number is

### Choices

Choice (4) | Response | |
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a. | ||

b. | ||

c. | ||

d. |

## Question 858

### Question

MCQ▾A man walks a distance 24 km in given time. If he walks 1 km/hr faster, he will perform the journey 2 hrs before. Find his normal rate of walking.

### Choices

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

a. | 3 km/hr or -4 km/hr | |

b. | 3 km/hr | |

c. | -4 km/hr | |

d. | All of the above |

## Question 859

### Question

MCQ▾In the following figure . Then x = ________.

### Choices

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

a. | 18 cm | |

b. | 21 cm | |

c. | 16 cm | |

d. | None of the above |

## Question 860

### Question

MCQ▾If are the roots of the equation , then the quadratic equation whose roots are and is

### Choices

Choice (4) | Response | |
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a. | ||

b. | ||

c. | ||

d. | All of the above |

## Question 861

### Question

MCQ▾In the figure, D is midpoint of BC and DE is the bisector of and . Then ________.

### Choices

Choice (4) | Response | |
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a. | ||

b. | ||

c. | ||

d. |

## Question 862

### Question

MCQ▾In a single throw of two dice, the probability of getting a sum of 5 is

### Choices

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

a. | ||

b. | ||

c. | ||

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