16 .
Gauri went to the stationers and bought things worth Rs. 25, out of which 30 paise went on sales tax on taxable purchases. If the tax rate was 6%, then what was the cost of the tax free items?

A. | Rs. 15 |
B. | Rs. 15.70 |

C. | Rs. 19.70 |
D. | Rs. 20 |

17 .
Rajeev buys good worth Rs. 6650. He gets a rebate of 6% on it. After getting the rebate, he pays sales tax @ 10%. Find the amount he will have to pay for the goods.

A. | Rs. 6876.10 |
B. | Rs. 6654 |

C. | Rs. 7000 | D. | Rs. 6999.20 |

18 .
The population of a town increased from 1,75,000 to 2,62,500 in a decade. The average percent increase of population per year is:

A. | 4.37% |
B. | 5% |

C. | 6% |
D. | 8.75% |

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