# Basic Mathematics-Arithmetic (KVPY Stream-SA (Class 11) Math): Questions 9 - 12 of 77

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## Question number: 9

» Basic Mathematics » Arithmetic » Rates

Appeared in Year: 2010

### Question

I carried 1000 kg of watermelon in summer by train. In the beginning, the water content was 99%. By the time I reached the destination, the water content had dropped to 98%. The reduction in the weight of the watermelon was

### Choices

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

a. | 500 kg | |

b. | 50 kg | |

c. | 10 kg | |

d. | 100 kg |

## Question number: 10

» Basic Mathematics » Arithmetic » Ratio and Proportion

Appeared in Year: 2013

### Question

A person X is running around a circular track completing one round every 40 seconds. Another person Y running in the opposite direction meets X every 15 second. The time, expressed in seconds, taken by Y to complete one round is

### Choices

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

a. | 55 | |

b. | 12.5 | |

c. | 25 | |

d. | 24 |

## Question number: 11

» Basic Mathematics » Arithmetic » Number Games

Appeared in Year: 2014

### Question

Suppose a_{2}, a_{3}, a_{4}, a_{5}, a_{6}, a_{7} are integers such that

Where for j = 2, 4, 5, 6, 7. The sum is,

### Choices

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

a. | 9 | |

b. | 10 | |

c. | 8 | |

d. | 11 |

## Question number: 12

» Basic Mathematics » Arithmetic » Number Games

Appeared in Year: 2010

### Write in Short

Leela and Madan pooled their music CD’s and sold them. They got as many rupees for each CD as the total number of CD’s they sold. They share the money as follows Leela first takes 10 rupees, then Madan takes 10 rupees and they continue taking 10 rupees alternately till Madan is left out with less than 10 rupees to take. Find the amount that is left out for Madan at the end, with justification.