Reciprocal Ratio

Q.

Find the reciprocal ratio of 27:31

1. 31:27

2. 3:2

3. 2:3

4. 27:31

Q.

Which of the following is the inverse ratio of 23:15

1. 32:51

2. 51:32

3. 15:23

4. $\frac{1}{15}$:$\frac{1}{23}$

Q. The reciprocal ratio of $\frac{a}{2}$ : $\frac{b}{3}$ is _______.

1. 2b : 3a
2. 3b : 2a
3. 2a : 3b
4. 3a : 2b

Q. The reciprocal ratio of 3: 4 is __________.

1. 3:4
2. 4:3
3. 9:16
4. 16:9

Q.

If a:b is the reciprocal ratio of 10:9, then a:b is ____

1. 9

2. 3

3. 10

4. 4

Q.

Find the reciprocal ratio of $3x:\frac{1}{y}$

Q. Which of the following is the reciprocal ratio of 23:12?

1. 23:12
2. $\frac{1}{12}:\frac{1}{23}$
3. 12:23
4. 32:21

Q. What is the reciprocal ratio of $4:9$

1. $9:4$
2. $16:18$
3. $8:18$
4. $81:16$

Q. The reciprocal ratio of $\frac{1}{7}:\frac{1}{8}$ is _____

1. $7:8$
2. $8:7$
3. $1:56$
4. $56:1$

Q. If $x:y=1:2$ and $y:z=8:3$, then the reciprocal ratio of $z:x$ is ____

1. $4:3$
2. $3:8$
3. $1:3$
4. $3:4$

Q. What is the reciprocal ratio of $9x^2:11x^2$?

1. $11x^2:9x^2$
2. $121x^2:81x^2$
3. $22x^2:18x^2$
4. $81x^2:12x^2$

Q. Find the:
reciprocal ratio of 3: 5

Q. What is the reciprocal ratio of $(x-5):(x-7)$

1. $(x+5):(x+7)$
2. $(x+7):(x+5)$
3. $(x+14):(x+28)$
4. $(x-7):(x-5)$

Q. What is the reciprocal ratio of $2:3$

1. $4:9$
2. $3:2$
3. $9:4$
4. $6:4$

Q. In $△ABC$ if a:b:c = 4 : 5 : 6 find the ratio of radius of circum circle to that of the circle.

Q. What is the reciprocal ratio of $121x^3:25x^3$

1. $11x^3:5x^3$
2. $25x^2:121x^2$
3. $25x^3:121x^3$
4. $5x^3:11x^3$

Q. The reciprocal ratio of $217:218$ is ____

1. $217:218$
2. $2:8$
3. $\sqrt{217}:\sqrt{218}$
4. $218:217$

Q. What is the reciprocal ratio of $39:41$?

1. $41:47$
2. $53:51$
3. $41:39$
4. Not determined

Q. What is the reciprocal ratio of $21:31$?

1. $42:62$
2. $62:42$
3. $35:37$
4. $31:21$

Q. What is the reciprocal ratio of $8:15$?

1. $225:64$
2. $16:30$
3. $64:225$
4. $15:8$

Q.

Find the reciprocal ratio of :

(i) 5 : 8 (ii) $\frac{x}{3}:\frac{y}{7}$