Question

(c) 24, 28, 30
(a) 32, 8, 16,4
(b) 19, 20, 38, 40
2. Find the value of a so that the given four numbers are in propor
(a) 9, 12, a, 8
(b) a, 4, 15, 30
(c) 25, 30, 40
3. Show that the given numbers are in proportion :
(a) 18, 42, 98,
(b) 25, 30, 36
(c) 25, 20, 10
4. Find the value of b so that the given numbers are in proportion
(a) 24, 36, 6
(b) 25, 6, 36
(c) b, 45, 81
5. The ratio of the length and width of a park is 5: 4, find its length,
. The ratio of copper and zinc in an alloy is 6:7. If the weight of the
weight of zinc in the alloy.
. The ratio of the income to the expenditure of a family is 15 : 13. Fin
[Hint : First find the expenditure.]​

Answer 1

Answer:

sorry I don't know

Step-by-step explanation:

sorry I don't know