Question

for 16:x: :x:4the mean proportion is 8.​

Answer 1

Step-by-step explanation:

1. The first and last terms in a proportion are called extremes.

2. For 16 : x :: X: 4, the mean proportion is 8.

3. The ratio of girls in a class of 30 students having 12 girls is 2:3.

4. The ratio of smallest natural number and the smallest odd prime number

5. A man buys a book for 80 and sells it for 100. His gain per cent is 20°

4. Say

3

6.

as rate per cent is 37.5%,

8

B. Match the columns:

1. 60 cm is to 1 m

2. 14 : 16 in simplest for m

3. The ratio of 40 kg to 200 g is

4. The ratio of 50 minutes to 10 hours is

C. Fill in the blanks:

1. If x : 12 : : 6:9, then x =

(a) 7:8

(b) 200 : 1

(c) 3:5

(d) 1 : 12

2. Profit

x 100.

Cost price