21 .
If 5% more is gained by selling an article for Rs. 350 than by selling it for Rs. 340, the cost of the article is:

A. | Rs. 60 | B. | Rs. 130 |

C. | Rs. 180 | D. | Rs. 200 |

22 .
By selling 12 toffees for a rupee, a man loses 20%. How many for a rupee should be sell to get a gain of 20%?

A. | 6 | B. | 8 |

C. | 10 | D. | 12 |

23 .
A vendor bought toffees at 6 for a rupee. How many for a rupee must he sell to gain 20%?

A. | 5 | B. | 6 |

C. | 7 | D. | 8 |

24 .
On an order of 5 dozen boxes of a consumer product, a retailer receives an extra dozen free. This is equivalent to allowing him a discount of:

A. | 14.33% | B. | 14.78% |

C. | 15.50% | D. | 16.67% |

25 .
In a certain store, the profit is 320% of the cost. If the cost increases by 25% but the selling price remains constant, approximately what percentage of the selling price is the profit?

A. | 40% | B. | 60% |

C. | 70% | D. | 90% |

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