Chapter 13 Direct and Inverse Proportions Very Short Answer Type Question 1. A train is moving at a uniform speed of 100 km/h. How far will it travel in 20 minutes? Solution: Let the distance travelled by train in 20 minutes be x km. Since the speed is uniform, the...
Chapter 13 Direct and Inverse Proportions Ex 13.2 Question 1. Which of the following are in inverse proportion? (i) The number of workers on a job and the time to complete the job. (ii) The time taken for a journey and the distance travelled in a uniform speed. (iii)...
Chapter 13 Direct and Inverse Proportions Exercise 13.1 Question 1. Following are the car parking charges near a railway station up to. 4 hours – ₹ 60 8 hours – ₹ 100 12 hours – ₹ 140 24 hours – ₹ 180 Check if the parking charges are in direct proportions to the...
Chapter 12 Exponents and Powers Very Short Answer Type Question 1. Find the multiplicative inverse of: (i) (ii) Solution: Question 2. Expand the following using exponents. (i) 0.0523 (ii) 32.005 Solution: Question 3. Simplify and write in exponential form. Solution:...
