Cost of 5 kg wheat is ₹91.50. (b) What quanitty of wheat can be purchased in ₹183 ?

Cost of 5 kg wheat is ₹91.50. (a) What will be the cost of 8 kg of wheat ?

Cost of 4 dozen bananas is ₹180. How many bananas can be purchased for ₹90?

There are 6 books on mathematics, 4 books on physics annd 5 books on chemistry in a book shop. The number of ways can a student purchase either a book on mathematics or a book on chemistry, is

A farmer was having a field in the form of a parallelogram PQRS . She took any point A on RS and joined it to the points P and Q. In how many parts the fileds is divided ? What ar the shapes of these parts ? The farmer wants to sow wheat and pulses in equal portions of the filed separately, How should she do it ?

A rocket, set for vertical launching, has a mass of 50 kg and contains 450 kg of fuel. It can have a maximum exhaust speed of 1 kms^(-1) If g = 10 ms^(-2) . What should be the minimum rate of fuel consumption to just lift it off the launching pad ?

In a car lift compressed air exerts a force F F_1 on a small piston having a radius of 5.0 cm, This pressure is transmitted to a second piston of radius 15cm [Fig.10.7]. If the mass of the car to be lifted is 1350 kg. calculate F_1 What is the pressure necessary to accomplish this task?

The cost of 4kg onion, 3 kg wheat and 2kg rise in Rs. 60. The cost of 2kg onion, 4 kg wheat and 6 kg rice in Rs.90. The cost of 6kg onion, 2kg wheat and 3 kg rice is Rs.70. Find cost of each item per kg by matrix method.

A farmer was having a field in the form of a parallelogram PQRS. She took any point A on RS and joined it to points P and Q. In how many parts the fields is divided? What are the shapes of these parts? The farmer wants to sow wheat and pulses in equal portions of the field separately. how should she do it?