Continued Proportion

Q.

Find the third proportional to 16 and 40

1. 240

2. 100

3. 400

4. 250

Q.

40 bags of cotton cost Rs.2200, but by exchanging 25 bags to the shopkeeper we get 30 grams of silver. Find the price of 150 grams of silver by exchanging relevant number of cotton bags.

1. Rs 6875

2. Rs 6675

3. Rs 6575

4. Rs 6975

Q.

Find the value of $x$ so that the given numbers are in proportion

$x:5::15:25$

1. 4

2. 3

3. 5

4. 2

Q.

Find the third proportional to:

$5,10$

Q. If the original size of an image is $540\times 680$, the image size cannot be achieved without disturbing the ratio.

1. $135\times 170$
2. $27\times 34$
3. $123\times 164$

Q.

The third proportional to $8,and12$ is

1. $8$

2. $12$

3. $18$

4. $24$

Q. Symbol for proportion is__

1. ::
2. $\cong$
3. =
4. :

Q. The middle terms , if four different numbers are in proportion are called ______ .

1. Means
2. Antecedents
3. Extremes
4. Consequents

Q.

If a : b = 5 : 6 and b : c = 3 : 4 , find a : b : c

1. 5 : 6 : 8

2. 10 : 6 : 12

3. 12 : 6 : 14

4. 6 : 10 : 24

Q.

Find the fourth proportion to 1.2, 1.6 and 7.2.

1. 2.6

2. 6.9

3. 5.4

4. 9.6

Q. If 4 : 2 = 62 : x, then the value of x is .

1. 33
2. 31
3. 30

Q.

Find the value of $x$ in proportion 1.2 : 3.9 :: 2 : $x$

1. 5.6

2. 2.34

3. 5.8

4. 6.5

Q. If two ratios are in proportion, then there should be symbol between those two ratios.

1. ::::
2. =
3. ;