The ratio of the income of A to that of B is 5 : 7. A and B save Rs.4,000 and Rs.5,000 respectively. If the expenditure of A is equal to $$ {66 {2\over 3}}{\%}$$ of the expenditure of B, then the total income of A and B is:

If there are four lines in a plane, then what cannot be the number of points of intersection of these lines? 

Directions: The bar graph shows the results of an annual examination in a secondary school in a certain year. Answer the following four questions based on this chart.

The ratio of the total number of boys passed to the total number of girls passed in the three classes VII, VIII and IX is 

If $${a+b=10}$$ and $$ \sqrt{a\over b}-13=-\sqrt{b\over a}-11$$, then what is the value of $${3ab+4a^2+5b^2}$$?

The table given below shows the information about bats manufactured by 6 different companies. Each company manufactures only plastic and wooden bats. Each company labels these bats as Brand A or Brand B. The table shows the number of plastic bats as a percentage of total bats manufactured by each company. It also shows the ratio of wooden bats labelled A and B. Each company manufactured a total 550000 bats.

P=sum of wooden bats of Brand B manufactured by S and wooden bats of Brand A manufactured by W.
Q= Difference of Brand B wooden bats and Brand A wooden bats manufactured by U.
What is the value of P - Q ?

The line graph shows the number of vacancies of accountants in a certain company. Study the diagram and answer the following questions.

 What is the average of the total vacancies?

A and B invested 1/2 and 1/3 of the total capital respectively, the remaining part C invested. If there is a profit of Rs. 9696 at the end of the year, then what is the profit of B?

AB is diameter of a circle with centre 'O'. CD is a chord which is equal to the radius of the circle. AC and BD are extended so that they intersect each other at point P. Then find the value of ∠ APB.