A cooperative bank lent Rs. 4000 to Akshay at a certain rate of simple interest and Rs.5000 to gautham ½% more than that of Akshay. After 2 years the bank received Rs.860 as total interest from Akshay and gautham. Find the rate of interest per annum at which the amount was lent to gautham.

1.  5%

2.  4.5%

3.  5.5%

4.  4%

5.  None of these

View Answer  
5
Correct Answer :

5\%


Explanation :
No Explanation available for this question

The CI earned in the 7th year is Rs. 500. If the rate of interest is 15%, find the compound interest earned in the 8th year.

1.  Rs 500

2.  Rs 525

3.  Rs 550

4.  Rs 575

5.  Rs 600

View Answer  
5
Correct Answer :

Rs 575


Explanation :
No Explanation available for this question

The compound interest earned in the 3rd and 4th year is Rs. 450 and Rs. 500. Find the rate of interest.

1.  9.09%

2.  10%

3.  11.11%

4.  12.5%

5.  15%

View Answer  
5
Correct Answer :

11.11\%


Explanation :
No Explanation available for this question

At a compound interest rate of 10%, the compound interest earned in the 8th  year is Rs.484. Find the compound interest earned in the 6th year.

1.  Rs 360

2.  Rs 400

3.  Rs 440

4.  Rs 480

5.  cannot be determined

View Answer  
5
Correct Answer :

Rs 400


Explanation :
No Explanation available for this question

If the rate of compound interest is 12.5%, find the ratio of compound interest earned in the 24th year and that earned n the 25th  year.

1.  8 : 9

2.  9 : 8

3.  24 : 25

4.  192 : 225

5.  25 : 27

View Answer  
5
Correct Answer :

8 : 9


Explanation :
No Explanation available for this question

If the ratio of compound interest earned in the nth and the (n+1)th year is 15 : 16, find the rate of interest.

1.  12.5%

2.  13.33%

3.  6.66%

4.  6.25%

5.  Depends on value of n

View Answer  
5
Correct Answer :

6.66\%


Explanation :
No Explanation available for this question

Pipe A fills a tank of 700 litres capacity at the rate of 40 litres a minute. Another pipe B fills the same tank at the rate of 30 litres a minute. A pipe at the bottom of the tank drains the tank at the rate of 20 litres a minute. If pipe A is kept open for a minute and then closed and pipe B is kept open for a minute and then closed and then pipe C is kept open for a minute and then closed and the cycle repeated, how long will it take for the empty tank to overflow

1.  42 minutes

2.  14 minutes

3.  39 minutes

4.  40 minutes 33 seconds

5.  None of these

View Answer  
5
Correct Answer :

None of these


Explanation :
No Explanation available for this question

There are 12 pipes that are connected to a tank. Some of them are fill pipes and the others are drain pipes. Each of the fill pipes can fill the tank in 8 hours and each of the drain pipes can drain the tank completely in 6 hours. If all the fill pipes and drain pipes are kept open, an empty tank gets filled in 24 hours. How many of the 12 pipes are fill pipes

1.  6

2.  8

3.  7

4.  5

5.  4

View Answer  
5
Correct Answer :

7


Explanation :
No Explanation available for this question

A pump can be used either to fill or to empty a tank. The capacity of the tank is 3600 m3. The emptying capacity of the pump is 10 m3/min higher than its filling capacity. What is the emptying capacity of the pump if the pump needs 12 more minutes to fill the tank than to empty it

1.  50 m3 / min

2.  60 m3 / min

3.  45 m3 / min

4.  90 m3 /min

5.  72 m3 /min

View Answer  
5
Correct Answer :

60 m3 / min


Explanation :
No Explanation available for this question

Two workers A and B manufactured a batch of identical parts. A worked for 2 hours and B worked for 5 hours and they completed half the job. Then they worked together for another 3 hours and they had to do (1/20)th of the job. How much time does B take to complete the job, if he worked alone

1.  24 hours

2.  12 hours

3.  15 hours

4.  30 hours

5.  18 hours

View Answer  
5
Correct Answer :

15 hours


Explanation :
No Explanation available for this question
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