A) Rs. 750 | B) Rs. 800 |

C) Rs. 850 | D) Rs. 900 |

Explanation:

Let the cost of Production = Rs. P

Then, as per question,

A) Rs. 1100 | B) Rs. 1793.4 |

C) Rs. 1440 | D) Rs. 1232 |

Explanation:

Let Cost Price(C.P) = P

gain% = {(S.P-C.P)/C.P} x 100

25 = {(1540-P)/P} x 100

25/100 = (1540-P)/P

=> P = 4(1540)-4P

=> 5P = 4(1540)

=> P = 1232

So, Cost Price = Rs. 1232

A) 3.25% loss | B) 13.742% loss |

C) 3.25% gain | D) 13.742% gain |

Explanation:

Let CP = 100,

42 % increase => SP = 142

10 % discount in SP => ((142 x 10)/100) = 14.2

So 1st SP = (142 - 14.2) = 127.8, again 12 % discount in 1st SP ((127.8 x 11)/100) = 14.058

2nd SP = (127.8 - 14.058) = 113.742,

So finally CP = 100, SP = 113.742, => gain = 13.742%.

A) 14.28 % profit | B) 24.18 % profit |

C) 14.28 % loss | D) 24.18 % loss |

Explanation:

Let 1kg of Rs. 100 then 840gm is of Rs. 84.

Now (label on can 1kg but contains 840kg ) so for customer it is of Rs. 100 and further gives 4% discount [he sells his article on 4% loss on cost price.]

So now S.P = Rs. 96

But actually it contains 840 gm so C.P for shopkeeper = Rs. 84

S.P = Rs. 96

C.P = Rs. 84

Profit% = {(S.P-C.P)/C.P}x100

{(96-84)/84} x 100 = 14.28571429% PROFIT.

A) Rs. 64 | B) Rs. 52 |

C) Rs. 72 | D) Rs. 55 |

Explanation:

Given Loss = Rs. 40.4

We know loss = cost price - selling price

40.4 = CP - 35(15)

=> CP = 40.4 + 525

=> CP = Rs. 565.4

Now the New selling price of waffer is Rs. 18

=> SP = 35(18) = 630

Now Gain = SP - CP = 630 -565.4 = Rs. 64.6.

A) Rs. 55 | B) Rs. 60 |

C) Rs. 65 | D) Rs. 70 |

Explanation:

Let the cost price of a ball is Rs.x

Given, on selling 17 balls at Rs. 720, there is a loss equal to the cost price of 5 balls

The equation is :

17x - 720 = 5x

Solving the equation

we get x = 60

Therefore, cost price of a ball is Rs. 60.