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Important Formulas

Vedic/Quicker Math

Alligation or Mixture

Area

Average

Banker's Discount

Boats and Streams

Calendar

Chain Rule

Clock

Compound Interest

Decimal Fraction

Height and Distance

Logarithm

Numbers

Odd Man Out and Series

Partnership

Percentage

Permutation & Combination

Pipes and Cistern

Probability

Problems on Ages

Problems on H.C.F & L.C.M

Problems on Numbers

Problems on Trains

Races and Games

Ratio and Proportion

Simple Interest

Simplification

Square Root and Cube Root

Stocks and Shares

Surds and Indices

Time and Distance

Time and Work

True Discount

Volume and Surface Area

Practice Questions

:- You can add tough questions into
your favourite list for second revision. Note |

Q1. | 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. | 30% [Wrong Answer] |

B. | 70% [Correct Answer] |

C. | 100% [Wrong Answer] |

D. | 250% [Wrong Answer] |

View Answer
Explanation:-
Answer : BDiscuss it below :Let C.P. = Rs. 100. Then, Profit = Rs. 320, S.P. = Rs. 420.∴ New C.P. = 125% of Rs. 100 = Rs. 125; New S.P. = Rs. 420. Profit = Rs. (420 - 125) = Rs. 295. _{Required percentage = } ^{ 295 }_{ X 100 %}^{
420}_{= }
^{1375}_{ % ≈ 70%}^{21}
Click here for more comments |

Q2. | The ratio of the cost price and the selling price is 4 : 5. The profit percent is : |

A. | 10% [Wrong Answer] |

B. | 20% [Wrong Answer] |

C. | 25% [Correct Answer] |

D. | 30% [Wrong Answer] |

View Answer
Explanation:-
Answer : CDiscuss it below :Let C.P. = Rs. 4x. Then, S.P. = Rs. 5x. Gain = Rs. (5x - 4x) = Rs. x
_{Gain% = } ^{ x }_{ X 100 % = 25%.}^{
4x}Click here for more comments |

Q3. | Kunal bought a suitcase with 15% discount on the labelled price. He sold the suitcase for Rs. 2880 with 20% profit on the labelled price. At what price did he buy the suitcase? |

A. | Rs. 2040 [Correct Answer] |

B. | Rs. 2400 [Wrong Answer] |

C. | Rs. 2604 [Wrong Answer] |

D. | Rs. 2640 [Wrong Answer] |

View Answer
Explanation:-
Answer : ADiscuss it below :Hurr Said on 2016-05-13 14:54:442880=x*120/100 x=2400 2400*85/100=2040 Click here for more comments |

Q4. | Jacob bought a scooter for a certain sum of money. He spent 10% of the cost on repairs and sold the scooter for a profit of Rs. 1100. How much did he spend on repairs if he made a profit of 20% ? |

A. | Rs. 400 [Wrong Answer] |

B. | Rs. 440 [Wrong Answer] |

C. | Rs. 500 [Correct Answer] |

D. | Rs. 550 [Wrong Answer] |

View Answer
Explanation:-
Answer : CDiscuss it below :Let the C.P. be Rs. x. Then, 20% of x= 1100 => ^{20}/_{100}C.P. = Rs. 5500, Expenditure on repairs = 10%. _{Actual price = Rs. } ^{100}_{ X 5500 = Rs, 5000.}^{
110}Expenditure on repairs = Rs. (5500 - 5000) = Rs. 500. Click here for more comments |

Q5. | A fruitseller sells mangoes at the rate of Rs. 9 per kg and thereby loses 20%. At what price per kg, he should have sold them to make a profit of 5% ? |

A. | Rs. 11.81 [Wrong Answer] |

B. | Rs. 12 [Wrong Answer] |

C. | Rs. 12.25 [Correct Answer] |

D. | Rs. 12.31 [Wrong Answer] |

View Answer
Explanation:-
Answer : CDiscuss it below :_{80 : 9 = 105 : x or x = } ^{9 X 105}_{ = 11.81.}^{
80}Hence, S.P. per kg = Rs. 11.81. Click here for more comments |

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