In 1 kg of a mixture of sand and iron, 20% is iron .How such sand should be added so that the proportion of iron becomes 5%?
The product of the ages of Harish and Seema is 240. If twice the age of Seema is more than Harish’s age by 4 years, what is Seema’s age in years ?
If the ages of P and R are added to twice the age of Q, the total becomes 59; if the ages of Q and R are added to thrice age of P, the total becomes 68 and if the age of P is added to thrice the age of Q and thrice the age of R, the total becomes 108. What is the age of P ?
Find the speed of train in km/hr whose length is 200 m and crosses a platform of length 240 m in 22 seconds ?
Two cars starts at the same time from A and B which is 120 km apart. If the two cars tarvel in opposite direction they meet after one hour and if they travel in same direction (from A towards B) then A meet B after 6 hours. What is the speed of car starting from A ?
