A) Rs 1 | B) Rs 1.33 |

C) Rs 1.5 | D) Rs 1.6 |

Explanation:

Recall it is based on inverse proportion or product constancy concept.

Reducion in price increase in amount

25% 33.33% = 4 oranges

It means original number of oranges = 4 x 3 = 12

original price of oranges = = Rs. 1.33

A) He lost Rs. 200 | B) He gained Rs. 200 |

C) Neither he gained nor lost | D) None of the above |

Explanation:

In first he got Rs. 990

But in second he lost Rs. 1980

So he lost Rs. 990.

A) Rs. 660 | B) Rs. 560 |

C) Rs. 1060 | D) Rs. 960 |

Explanation:

Let C.P. = Rs. C.

Then, 832 - C = C - 448

2C = 1280 => C = 640

Required S.P. = 150% of Rs. 640 = 150/100 x 640 = Rs. 960.

A) 51.8 % | B) 49.25 % |

C) 47.2 % | D) 53.84 % |

Explanation:

100

65

-------

65 ------- 35

100 ------ ? => 53.84 %

A) Rs. 2000 | B) Rs. 1600 |

C) Rs. 2200 | D) Rs. 2100 |

Explanation:

Let 'x' be the cost price.

Now Marked price = x + 30x/100 = 13x/10

10% discount = 10/100 x 13x/10 = 13x/100

Selling price = 13x/10 - 13x/100 = 117x/100

Given gain = 340

Here gain = 117x/100 - x = 17x/100 = 340 => x = Rs. 2000.

A) Rs. 6000 | B) Rs. 4500 |

C) Rs. 5000 | D) Rs. 6500 |

Explanation:

Income = Rs. 100

Expenditure = Rs. 80

Savings = Rs. 20

Present Expenditure 80x(15/100) = Rs. 12 = 80 + 12 = Rs. 92

Present Savings = 100 – 92 = Rs. 8

100 ------ 8

? --------- 400 => 5000

His salary = Rs. 5000