Question

1 Encircle the correct option from the following.
The ratio 20 seconds : 3 minutes as a single fraction in its lowest terms is
A. 20:3
B.2:18
C. 1:9 D. 9:1
10 workers can paint a house in 30 days, how many days will 15 workers
A. 30
B. 40
C. 45
D. None of these
Ifx : y = 1:4 and y: z = 4:9 then xyz = ?
A. 1:4:9 B. 4:1:9
G. 9:4:1 D.1:9:4
if M = ky2 and K = 6 and Y = 2 then M =
A 12
B.24
C.36
0.72
by William E
The symbol a "is proportional to" was first used in
A 1678
B. 1876
C. 1786
D. 1768​

Answer 1

Answer:

1) C.

2) D.

3) A.

4) B.

5) D.

Step-by-step explanation:

Hope this will help