Katarina is a botanist studying the production of pears by two types of pear trees. She notices that Type $A$ trees produced $20$ percent more pears than Type $B$ trees did. Based on Katarina's observation, if the Type $A$ trees produced $144$ pears, how many pears did the Type $B$ trees produce?

Q. In an orchard row, there were 4 distinct type of fruit trees between any two pear trees. Find the position of the tenth pear tree considering the row starts with a pear tree.

Q. A farmer decides to build an orchard with 32 orange trees, 24 mango trees and 40 pear trees. If each row has a similar type of fruit tree and equal number of fruit trees, the minimum number of possible rows is .

Q. A basket contains three types of fruits weighing $19\frac{1}{3}\mathrm{kg}$ in all. If $8\frac{1}{9}\mathrm{kg}$ of these be apples, $3\frac{1}{6}\mathrm{kg}$ be oranges and the rest pears, what is the weight of the pears in the basket?

Q. A basket constants three types of fruits weighting $19\frac{1}{3}kg$ in all. If $8\frac{1}{9}kg$ of these be apples. $3\frac{1}{6}kg$ be oranges and the pears. What is the weight of the pears in the basket?

Q. A man owns a field of area 1000 sq.m. He wants to plant fruit trees in it. He has a sum of Rs 1400 to purchase young trees. He has the choice of two types of trees. Type A requires 10 sq.m of ground per tree and costs Rs 20 per tree and type B requires 20 sq.m of ground per tree and costs Rs 25 per tree. When fully grown, type A produces an average of 20 kg of fruit which can be sold at a profit of Rs 2.00 per kg and type B produces an average of 40 kg of fruit which can be sold at a profit of Rs. 1.50 per kg. How many of each type should be planted to achieve maximum profit when the trees are fully grown? What is the maximum profit?