If 20 women can lay a road of length 100m in 10 days. 10 women can lay the same road of length 50m in: 

Directions:  Study the bar-graph given below & answer the questions.
Pie-chart given below shows the percentage distribution of total no. of boys in six different Schools.
Total Boys in all schools together = 6400

If ratio of girls to total students in school E is 3 : 5. Then find difference of boys in school D to girls in school E?

The product of two numbers is 45 and their difference is 4. The sum of squares of the two numbers is

The value of  

The selling price of an article is Rs. 1920 and the discount given is 4%. The market price of the article is -

Seven year ago, the ages (in years) of A and B were in the ratio 4 : 5 and 7 years hence, their ages will be in the ratio 5 : 6. What will be the ratio of their ages 5 years from now?

In a circle, PQ is diameter, RS is chord of length equal to radius of circle. PR and QS when produced intersect at point T. Find the ∠PTQ?

If  then what is the value of c.