# Mathematics-Linear Equations in One Variable [NSTSE (National Science Talent Search Exam- Unified Council) Class 8]: Questions 1 - 7 of 46

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## Question 1

### Question

MCQ▾If the angles of a triangle are in the ratio 1: 2: 3, then the difference between the greatest and smallest angles is:

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

b. | ||

c. | ||

d. |

## Question 2

## Question 3

### Question

MCQ▾If the digit 1 is placed after a two digit number whose tens digit is ‘a’ and units digit is ‘b’, the new number is:

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

b. | ||

c. | ||

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

## Question 4

### Question

MCQ▾When 70 % of a number is added to 90 the result is the number again. The number is

### Choices

Choice (4) | Response | |
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a. | 360 | |

b. | 300 | |

c. | 420 | |

d. | 280 |

## Question 5

### Question

MCQ▾A fraction such that if the numerator is multiplied by 3 and the denominator is reduced by 3, we get , but if the numerator is increased by 8 and the denominator is doubled, we get . Then the fraction is:

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

b. | ||

c. | ||

d. |

## Question 6

### Question

MCQ▾Sum of two numbers is 45 and their difference is 19. Then the numbers are:

### Choices

Choice (4) | Response | |
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a. | 20,25 | |

b. | 32,13 | |

c. | 26,19 | |

d. | 31,14 |

## Question 7

### Question

MCQ▾X and Y together can do a piece of work in 12 days, which X alone can do in 15 days. In how many days can T do the same work alone?

### Choices

Choice (4) | Response | |
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a. | 60 days | |

b. | 35 days | |

c. | 45 days | |

d. | 30 days |