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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
Profit & Loss
Races and Games
Ratio and Proportion
Simple Interest
Simplification
Square Root and Cube Root
Stocks and Shares
Surds and Indices
Time and Work
True Discount
Volume and Surface Area
Practice Questions
Note:- You can add tough questions into your favourite list for second revision. |
A train covers a distance of 10 km in 12 minutes. If its speed is decreased by 5 km /hr, the time taken by it to cover the same distance will be : | |
A. | 10 min [Wrong Answer] |
B. | 11 min 20 sec [Wrong Answer] |
C. | 13 min [Wrong Answer] |
D. | 13 min 20 sec [Correct Answer] |
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