Eight consecutive numbers are given. If the average of the two numbers that appear in the middle is 6, then the sum of the eight given numbers is: 

A trader purchased a gift box for Rs. 150. What should be the marked price on the gift box so that after allowing a discount of 10 %, he makes a profit of 10 %? 

The value of $$ \sqrt{11.981+7\sqrt{1.2996}}$$ is closest to 

The ratio of the length of the parallel sides of a trapezium is 3: 2. The shortest distance between them is 15 cm. If the area of the trapezium is 450 cm.2, the semi-sum of the length of the parallel sides is

Two numbers are in the ratio of 5:6 and if 4 is added to the first number and 4 is subtracted from the second number then the ratio becomes 3:2. Find the difference between two numbers.

Mohan gets 4 marks for each correct sum and losses 1 marks for each wrong sum. He attempted 30 sum and obtains 50 marks. The number of sums solved correctly is? 

Study the following information carefully to answer the questions.
The teachers' colony has 2800 members, out of which 650 members read only English newspaper. 550 members read only Hindi newspaper and 450 members read only Marathi newspaper. The number of members reading all the 3 newspapers is 100. Members reading Hindi as well as English newspapers are 200. 400 members read Hindi as well as Marathi newspaper and 300 members read English as well as Marathi newspaper.

How many members read only one newspaper?

A circle has two parallel chords of lengths 6cm and 8 cm. If the chords are 1cm apart and the centre is on the same side of the chords, and then find the length of diameter of the circle.