Question

es of petrol
8. If 20 m of a uniform wire weighs 15 kg, find the length of 48 kg of the same wire.
9. If a varies directly as b and a = 19.6 when b = 2. Find the value of, a when, b=3​

Answer 1

Answer:

8. 64 m

9. 29.4

Step-by-step explanation:

8. Let the length of the wire be x.

According to Question,

20 : x : : 15 : 48

=> x = 20 × 48/15

=> x = 64 m

9. a : b : : a : b

According to Question,

19.6 : 2 : : a : 3

=> a = 19.6 × 3/2

=> a = 29.4

Answer 2

8. 64 m

9. 29.4

is the right answer