4 men and 6 women can complete a work in 8 days. While 3 men and 7 women can complete it in 10 days. In how many days will 10 women complete it ?

Average age of 6 sons of a family is 8 year. Average age of sons together with their parents is 22 year. If the father is older than the mother by 8 year, the age of mother (in yr) is

A, B and C started a business with their investment in the ratio their investment in the ratio 1 : 3 : 5. After 4 months, A Invested the same amount as before and B as well as C withdraw half of their profits at the end of the year was

Two pipes A and B can separately fill a cistern in 60 min and 75 min pipe at the bottom of the cistern to empty it. If all the three pipes are simultaneously opened, the cistern is full in 50 min. In how much time can the third pipe alone empty the cistern ?

A cylindrical tube open at both ends is made of metal. The internal diameter of the tube is 11.2 cm and its length is 21 cm. The metal everywhere is 0.4 cm trick. The volume of the metal (take π = 22/7) is

An amount of Rs.1,00,000 is invested in two types of shares. The first yields an interest of 9% per annum and second yields 11% per annum. If the total interest at the end of 1 year is 9¾%, then the amount invested in each share was

A  highway loads to the foot of a 50 m tall tower. From the top of the tower, the angles of depression of two cars on the highway are 30° and 60°. What is the distance between the two cares ?

40 L of a mixture of milk and water contains 10% of water. The water to be added to make the water content 20% in the new mixture is

36 man can do a piece of work in x days and 48 women in (x+7) days .the ratio of the work done by 5 men to that by 3 women in the same time is 3:1. 
Find the value of  x  .

The price of an article is cut by 3%. To restore to its original value, the new price must be increased by