Running 4/3 of his usual speed, a person improves his timing by 10 minutes. Find his usual time to cover the given distance.

5 men and 5 women earn Rs.600 in 3 days. 10 men and 20 women earn Rs. 3500 in 5 days. In how many days can 6 men and 4 women earn Rs. 1060?

The LCM of two numbers is 495 and their HCF is 5. If the sum of the numbers is 100, then their difference is: 

In the given figure, from the point P two tangents PA and PB are drawn to a circle with center O and radius 5 cm. From the point O, OC and OD are drawn parallel to PA and PB respectively. If the length of the chord AB is 5 cm. then what is the value (in degrees) of ∠COD?

Direction: The line chart given below shows the number of labors (men and women) working in six different years. Study the data carefully and answer the following questions.

Average number of Women working in 2014, 2015 and 2016 together is how much more/less than average number of Men working in 2011, 2014 and 2016 together?

A, B and C entered into a business and their investment ratio was 5 : 4 : 3. After 4 months B invested Rs. 1000 more and after 8 months C invested Rs. 2000 more. At the end of one year the profit ratio was 15 : 14 : 11, then the investment of C at the beginning was -