# Practice Questions on AlgebraAptitude Questions and Answers

## Moderate Algebra Question - 6

 Q6. The digits of a three number are in $AP$. If the number is subtracted from the number formed by reversing its digits, the result is 396. What could be the original number?
 A. 654 B. 135 C. 852 D. 753

Common Information

The cost of fuel for running the engine of an army tank is proportional to the square of the speed and Rs. 64/hour for a speed of 16 kmph. Other costs amount to Rs. 400/hour. The tank has to make a journey of 400 km at a constant speed.

## Moderate Algebra Question - 7

 Q7. Common Information Question: 1/2 The most economical speed for this January is:
 A. 10 kmph B. 20 kmph C. 35 kmph D. 40 kmph

## Moderate Algebra Question - 8

 Q8. Common Information Question: 2/2 The total cost for the journey at this most economical speed is:
 A. Rs 6,000 B. Rs 8,000 C. Rs 10,000 D. Rs 11,000

## Moderate Algebra Question - 9

 Q9. $A$ and $B$ throws one dice for a stake of Rs 11, which is to be won by the player who first throws a six. The game ends when the stake is won by $A$ or $B$. If $A$ has the first throw, then what are their respective expectations?
 A. 5 and 6 B. 6 and 5 C. 11 and 10 D. 10 and 11

## Moderate Algebra Question - 10

 Q10. On January 1, 2004 two new societies $s_1$ and $s_2$ are formed, each $n$ numbers. On the first day of each subsequent month, $s_1$ adds $b$ members while $s_2$ multiples its current numbers by a constant factor $r$. Both the societies have the same number of members on July 2, 2004. If $b = 10.5n$, what is the value of $r$?
 A. 2 B. 1.9 C. 1.8 D. 1.7
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