Distance covered in 2.4 litres of petrol = 43.2 km
∴ Distance covered in 1 litre of petrol = 43.2 ÷ 2.4 = \(\frac{432}{10}\) ÷ \(\frac{24}{10}\) = \(\frac{432}{10}\)× \(\frac{10}{24}\) = 18
Therefore, the vehicle will cover 18 km in 1 litre petrol.
Match the items given in Column I with one or more items of Column II.
Column I | Column II |
(a) A plane mirror | (i) Used as a magnifying glass. |
(b) A convex mirror | (ii) Can form image of objects spread over a large area. |
(c) A convex lens | (iii) Used by dentists to see enlarged image of teeth. |
(d) A concave mirror | (iv) The image is always inverted and magnified. |
(e) A concave lens | (v) The image is erect and of the same size as the object. |
- | (vi) The image is erect and smaller in size than the object. |