Recent questions tagged medium

What is the angle between the direction of electric field at any (i) axial point and (ii) equatorial point. due to an electric dipole ?

asked Apr 21, 2015 by meena.p

1 answer

Consider the situation shown in the figure be what are the signs of $q_1$ and $q_2$ ?

asked Apr 21, 2015 by meena.p

1 answer

A point charge Q is placed at point O as shown in the fig. Is the potential difference $V_A - V_B $ positive ? negative or zero, if Q is (i) Positive (ii) negative

asked Apr 21, 2015 by meena.p

1 answer

A tap fill a tank in 12 min. at the rate of 6 litre/min. another tap empties the tank in 36 min. How much remains in the tank after 10 min. ?

asked Dec 8, 2014 by pady_1

0 answers

Two pipes P and Q can fill a tank in 12 min. and 16 min. respectively. If both the pipes are opened simultaneously, after how much time Q should be closed so that the tank is full in 6 minutes ?

asked Dec 8, 2014 by pady_1

0 answers

Two pipes P and Q can fill a tank in 45 min. and 36 min. respectively. A water pipe can empty the tank in 30 min. First P and Q are opened. After 7 minutes, R is also opened. In how much time, the tank in full ?

asked Dec 8, 2014 by pady_1

0 answers

An electric pump can fill a tank in 6 hours. Because of a leak in the tank, it took 7 hours to fill the tank. If the tank is full, how much time will the leak take to empty it ?

asked Dec 8, 2014 by pady_1

0 answers

One tap can fill a tank 10 hours. And another tap can empty the tank in 15 hours. How much time does it take to fill the tank if both pipes are opened ?

asked Dec 8, 2014 by pady_1

0 answers

Two pipes fill in a tank in 10 min. and 15 min. respectively. If both pipes are opened how much time does it take to fill the tank ?

asked Dec 8, 2014 by pady_1

0 answers

A work can be done by Arun and Balu is 15 days; by Balu and Chandan in 20 days and by Chandan and Arun in 30 days. In how many days can Chandan alone do the work ?

asked Dec 8, 2014 by pady_1

0 answers

Darshan and Ganesh can do a work independently in 20 days and 30 days. They two started the work, 2 days before completion of the work both Darshan and Ganesh dropped from the work. The remaining work was completed by Kalyan in 10 days. In how many days, Kalyan alone can do the work ?

asked Dec 8, 2014 by pady_1

0 answers

Vijay and Subbu can do a work independently in 20 days and 24 days. Subbu started the work and did for 6 days. The remaining work was done by Vijay in how many days?

asked Dec 8, 2014 by pady_1

1 answer

Ashish can do 1/2 of a work in 10 days and Karthik can do 1/3rd of the same work in 8 days. What is the ratio of their capacities ?

asked Dec 8, 2014 by pady_1

1 answer

Paul and Johnson undertake to do piece of work for Rs. 2400. Paul alone can do it in 12 days. While Johnson alone can do it in 16 days. With the help of Clinton, they finish it in 6 days. Find the share of Johnson.

asked Dec 8, 2014 by pady_1

0 answers

Antony can do a certain job in 21 days. David is 40% more efficient than Antony. How many days does David alone take to do the same job?

asked Dec 8, 2014 by pady_1

0 answers

If Atmika and Bhagya together can complete a piece of work in 8 days. If Atmika alone can complete the same work in 24 days, in how many days can Bhagya alone complete that work?

asked Dec 8, 2014 by pady_1

1 answer

Jayaram takes 6 hours to do a job. Rajesh takes 9 hours to do the same job. How long should it take both Jayaram and Rajesh, working together but independently, to do the same job?

asked Dec 8, 2014 by pady_1

0 answers

A train 280 metres long is running at a speed of 64 km/hr. If it crosses a tunnel in 45 seconds, then the length of the tunnel (in metres) is :

asked Dec 8, 2014 by pady_1

0 answers

A train covers a distance of 6 km in 5 minutes. If it takes 10 seconds to pass a telegraph post, then the length of the train is :

asked Dec 8, 2014 by pady_1

0 answers

Raman was going to Bangalore to Chennai on a Bus. He found out that including stoppages, the speed of the bus is 36 kmph and excluding stoppages, it is 45 kmph. For how many minutes does the bus stop per hour?

asked Dec 8, 2014 by pady_1

0 answers

A man driving a car was travelling with some constant speed and covered a certain distance. If the speed of the car was increased by 3 kmph, then the journey time was reduced by 40 minutes. If the speed of the car had been reduced 2 kmph slower, then he would have taken 40 minutes more. Find the distance covered (in km) by the car?

asked Dec 8, 2014 by pady_1

0 answers

The speed of the van increases by 3 kms after every one hour. If the distance traveled in the first one hour was 50 kms. What was the total distance traveled in 10 hours ?

asked Dec 8, 2014 by pady_1

0 answers

2 pumps, working 7 hours a day, can empty a tank in 3 days. How many hours a day must 3 pumps work to empty the tank in 1 day?

asked Dec 8, 2014 by pady_1

1 answer

10 men working 6 hrs per day manufacture 200 shoes in 18 days. How many hours a day must 15 men work to manufacture the same 200 shoes in 12 days?

asked Dec 8, 2014 by pady_1

0 answers

10 men working 6 hrs per day manufacture 200 shoes in 18 days. How many hours a day must 15 men work to manufacture the same 200 shoes in 12 days?

asked Dec 8, 2014 by pady_1

0 answers

In a plastic company, 14 men working 8 hrs per day complete a piece of work in 12 days. To complete the same work in 6 days, working 14 hours a day, the number of men required is :

asked Dec 8, 2014 by pady_1

0 answers

In picnic, there is a food for 240 boys or 400 girls. If 300 girls have taken the food, how many boys will be catered to with the remaining food?

asked Dec 8, 2014 by pady_1

0 answers

A wheel that has 8 cogs is meshed with a larger wheel of 14 cogs. When the smaller wheel has made 35 revolutions, then the number of revolutions made by the larger wheel is :

asked Dec 8, 2014 by pady_1

0 answers

A pole 20 m high casts a shadow of length 42.5 m. the height of the building, which casts a shadow of length 85 m under similar conditions will be :

asked Dec 8, 2014 by pady_1

0 answers

If 15 men can build a wall of forty two metres long in 5 days, what length of a similar wall can be built by 25 men in 4 days

asked Dec 8, 2014 by pady_1

0 answers

If 15 workers can do a piece of work in 40 hours, in how many hours will 12 workers do it?

asked Dec 8, 2014 by pady_1

0 answers

The product of two numbers is 436 and the sum of their squares is 186. The difference of the numbers is:

asked Dec 8, 2014 by pady_1

0 answers

A two-digit number is such that the product of the digits is 6. When 45 is added to the number, then the digits are reversed. The number is:

asked Dec 8, 2014 by pady_1

0 answers

The difference between a positive proper fraction and its reciprocal is 7/12. The fraction is:

asked Dec 8, 2014 by pady_1

0 answers

A number when divide by 7 leaves a remainder 4. When the square of the number is divided by 7, the remainder is:

asked Dec 8, 2014 by pady_1

0 answers

The sum of the two numbers is 19 and their product is 88. What is the sum of the reciprocals of these numbers ?

asked Dec 8, 2014 by pady_1

0 answers

Out of three consecutive odd numbers eight times the first number is equal to addition of thrice the third number and adding 5 to twice the second . What is the first number?

asked Dec 8, 2014 by pady_1

0 answers

In a class, the average age of 30 students is 9 years. If the age of their teacher is included, it becomes 10 years. The age of the teacher (in years)is

asked Dec 8, 2014 by pady_1

0 answers

In a set of 4 numbers, the average of first 3 numbers is 16 and that of the last 3 numbers is 15. If the last number is 18, the first number is

asked Dec 8, 2014 by pady_1

0 answers

The average height of 25 students is 165 cm. Later it is found that while calculating the average, the reading of 170 cm, was wrongly read as 117. what is the correct average?

asked Dec 8, 2014 by pady_1

0 answers

The average age of a class of 30 students is 13 years. When the age of the teacher is also included. The average will be increased by 1 year. What is the age of the teacher?

asked Dec 8, 2014 by pady_1

0 answers

The average age of a wife and a husband, who were married 6 years back was 22 years then. Including two sons, who were born during the interval, the average age of the family is 15 years now. If one son is 3 years old now. Find the age of the second son at present?

asked Dec 8, 2014 by pady_1

0 answers

The average of 39 numbers is 0. Of them, at the most, how many may be greater than 0?

asked Dec 8, 2014 by pady_1

0 answers

The L.C.M. of two numbers is 196. The numbers are in the ratio 4:7. The sum of the numbers is:

asked Dec 8, 2014 by pady_1

0 answers

The L.C.M. of two numbers is 27 times their H.C.F. If one of the numbers is 121 and the sum of H.C.F. and L.C.M. is 924, the other number is:

asked Dec 8, 2014 by pady_1

0 answers

The HCF of two numbers is 13. Which one of the following can never be their LCM?

asked Dec 8, 2014 by pady_1

0 answers

Find the greatest number which on dividing 1671 and 2055, leaves a reminder of 20 and 23 respectively

asked Dec 8, 2014 by pady_1

0 answers

Let N be the greatest number, that will divide 33, 81 and 173 so as to leave the same remainder in each case.

asked Dec 8, 2014 by pady_1

0 answers

The greatest number which on dividing 571 and 231 leaves remainders 6 and 5 respectively, is:

asked Dec 8, 2014 by pady_1

0 answers

The least number which when divided by 3, 4 and 7 leaves a remainder 2, but when divided by 5 leaves no remainder, is:

asked Dec 8, 2014 by pady_1

0 answers

Ask Questions, Get Answers