Rock phosphate is more soluble in acidic soils (pH <5.5) and therefore used in those soils.
A bowler gives 15 runs per wicket. He gives 30 runs and takes 5 wickets in a last match after which his average becomes 13.5 runs per wicket. How many w...
According to Ben, his age is between 30 and 34 years, while his wife thinks his age is between 32 and 36 years. His son believes his age is between 31 a...
The average of n numbers is 56. If each of 45% of the numbers is increased by 18 and each of the remaining numbers is decreased by 12, then the n...
There are 15 numbers such that average of first 12 numbers is 65 while the average of last five numbers is 70. Find the 12th number, if the ratio betwee...
The average number of books on history, polity and geography in a library is 144, and the average number of books on history and geography is 140. If th...
The average weight of 4 persons is 36 kg. The heaviest person’s weight is 26 kg more than the lightest person’s weight. If the average weight of the...
Average of four numbers is 25. Sum of smallest and largest number is 54. If difference between other two numbers is 2, then find the square of second sm...
A gift box has 10 bangles. The average weight of the first 4 bangles is 56gms and the average weight of the remaining 6 bangles is 57 gms. Tell the aver...
The average age of 4 children in a family is 30% of the average age of the mother and the youngest child. The total age of the father and the eldest chi...
A family spends ₹4,600, ₹5,600, ₹4,800, ₹3,800, and ₹6,000 on groceries in the first 5 months of a year. How much should the family spend in t...
