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#### Posted By : venu

Subject : Mathematics, Mental Ability, Aptitude, Reasoning & Statistics    |    Chapter : Average

## Question : The average age of 30 boys of a class is equal to 14 years. When the age of the class teacher is included the average becomes 15 years. Find the age of the class teacher?

0 Answer 0 Comments 97 views January 07, 2019 at 06:47 pm

#### Posted By : venu

Subject : Mathematics, Mental Ability, Aptitude, Reasoning & Statistics    |    Chapter : Average

## Question : The average price of 10 books is Rs. 12 while the average price of 8 of these books is Rs. 11.75. Of the remaining two books, if the price of one book is 60% more than the price of the other, what is the price of each of these two books?

0 Answer 0 Comments 97 views January 07, 2019 at 06:46 pm

#### Posted By : venu

Subject : Mathematics, Mental Ability, Aptitude, Reasoning & Statistics    |    Chapter : Average

## Question : The average age of students of a class is 15.8 years. The average age of boys in the class is 16.4 years and that of the girls is 15.4 years. The ratio of the number of boys to the number of girls in the class is:

0 Answer 0 Comments 96 views January 07, 2019 at 06:45 pm #### Posted By : venu

Subject : Mathematics, Mental Ability, Aptitude, Reasoning & Statistics    |    Chapter : Average

## Question : Of the four numbers, the first is twice the second, the second is one-third of the third and the third is 5 times the fourth. The average of the numbers is 24.75. The largest of these numbers is:

0 Answer 0 Comments 103 views January 07, 2019 at 06:44 pm

#### Posted By : venu

Subject : Mathematics, Mental Ability, Aptitude, Reasoning & Statistics    |    Chapter : Average

## Question : 3 years ago, the average of a family of 5 members was 17 years. A baby having been born, the average age of the family is the same today. The present age of the baby is:

0 Answer 0 Comments 96 views January 07, 2019 at 06:43 pm

## Question : If a sum on compound interest becomes three times in 4 years, then with the same interest rate, the sum will become 27 times in:

0 Answer 0 Comments 97 views January 07, 2019 at 06:42 pm ## Question : Divide Rs. 3903 between A and B, so that A’s Share at the end of 7 years may equal to B’s share at the end of 9 years, compound interest being at 4 percent.

0 Answer 0 Comments 96 views January 07, 2019 at 06:41 pm

## Question : A sum of money is borrowed and paid back in two annual installments of Rs. 882 each allowing 5% compound interest. The sum borrowed was:

0 Answer 0 Comments 91 views January 07, 2019 at 06:39 pm

## Question : .What sum invested for 2 years at 12% compounded annually will grow to Rs. 4390.40…..

0 Answer 0 Comments 123 views January 07, 2019 at 06:38 pm ## Question : 3.If the difference between the simple interest and compound interests on some principal amount at 20% for 3 years is Rs. 48, then the principal amount is

0 Answer 0 Comments 97 views January 07, 2019 at 06:37 pm

## Question : 2.Manoj borrowed a certain sum from Anuj at a certain rate of simple interest for 2 years. He lent this sum to Rakesh at the same rate of interest compounded annually for the same period. At the end of two years, he received Rs. 4200 as compound interest but paid Rs. 4000 only as simple interest. Find the rate of interest?

0 Answer 0 Comments 111 views January 07, 2019 at 06:36 pm

## Question : 1.The Simple interest on a certain sum for 2 years at 10% per annum is Rs. 90. The corresponding compound interest is:

0 Answer 0 Comments 109 views January 07, 2019 at 06:35 pm ## Question : Two Pipes A and B together can fill a Tank in ‘X’ minutes. If ‘A’ is Inlet Pipe can Fill the Tank alone in 40 minutes less than ‘X’ minutes and ‘B’ is Outlet pipe can empty the Tank alone in 30 minutes less than ‘X’ minutes. Then together they can fill the empty Tank in how many minutes?

0 Answer 0 Comments 101 views January 07, 2019 at 06:33 pm

## Question : Pipe A and B can fill a Tank alone in 48 Hours and 24 Hours respectively. Another Pipe C can empty the same Tank alone in 36 Hours. In an empty Tank for the First hour, Pipe A is opened alone, Second Hour pipe B is opened alone, Third Hour pipe C is opened alone. This process is continued until the Tank is filled. Then Pipe B is opened for How many Hours?

0 Answer 0 Comments 97 views January 07, 2019 at 06:32 pm

## Question : Pipe A and B can fill a Tank alone in 12 Hours and 6 Hours respectively. Another Pipe C can empty the same Tank alone in 9 Hours. In an empty Tank for the First hour, Pipe A is opened alone, Second Hour pipe B is opened alone, Third Hour pipe C is opened alone. This process is continued until the Tank is filled. Then Pipe A is opened for How many Hours?

0 Answer 0 Comments 100 views January 07, 2019 at 06:31 pm ## Question : Pipe A, B and can fill a Full Tank in 24,36 and 48 Minutes respectively. All three Pipes are Opened simultaneously in a Tank which is already filled up to 1/6 of its capacity. A and B are opened for only First 6 Minutes and closed thereafter.Then C alone filled remaining Tank. Then in total how many Minutes does C filled the Tank?

0 Answer 0 Comments 101 views January 07, 2019 at 06:30 pm

## Question : If the ratio of Rate of filling of two Pipes A and B is 3:2. If together they can fill a Tank 5/6th of Tank in 20 minutes. Then in how many does A alone can fill the Tank?

0 Answer 0 Comments 97 views January 07, 2019 at 06:29 pm

## Question : Pipe A can fill a Tank in 18 Hours, Pipe B can empty a Tank in 12 Hours, Pipe C can fill Tank in 6 Hours. The Tank is already filled up to 1/6 of its capacity. Now Pipe A is opened in the First Hour alone, Pipe B is opened in the Second Hour alone and Pipe C is opened in the Third Hour alone. This cycle is repeated until the Tank gets filled. Then in How many Hours does the rest of Tank gets filled?

0 Answer 0 Comments 95 views January 07, 2019 at 06:29 pm ## Question : Two Inlet Pipes A and B together can fill a Tank in ‘X’ minutes. If A and B take 81 minutes and 49 minutes more than ‘X’ minutes respectively, to fill the Tank. Then They can fill the 5/7 of that Tank in how many minutes?

0 Answer 0 Comments 99 views January 07, 2019 at 06:28 pm

## Question : A Tank is already filled up to X% of its capacity. An Inlet pipe can fill Full Tank in 30 minutes and an Outlet pipe can empty Full Tank in 20 Minutes. Now both pipes are opened then the Tank is emptied in 24 Minutes. Then initially up to what % of its capacity is Tank filled?

0 Answer 0 Comments 88 views January 07, 2019 at 06:27 pm

## Question : An Inlet pipe can fill a tank in 5 hours and an Outlet pipe can empty 4/7 of the same Tank in 4 hours. In the first hour only Inlet pipe is opened and in the second hour, only outlet pipe is opened. They have opened alternately every hour until the Tank is filled. Then in how many hours does the Tank gets filled?

0 Answer 0 Comments 96 views January 07, 2019 at 06:26 pm ## Question : A Tank is filled with the mixture of Milk and Water in the ratio of 3:2 up to 2/5 of its capacity. The tank has two inlet pipes i.e., Milk and Water inlets. Milk and Water pipe can fill an empty tank in 12 and 18 hours respectively. Now both pipes are opened simultaneously and closed after the Tank is completely filled, then what is the ratio of Milk and Water in the full Tank if it can accommodate 250Litre?

0 Answer 0 Comments 94 views January 07, 2019 at 06:25 pm