Find sub-triplicate ratio of $x^3: 125y^3$.

Important Questions on Ratio and Proportion (Including Properties and Uses)

EASY

10th ICSE

IMPORTANT

Concise Mathematics>Chapter 7 - Ratio and Proportion (Including Properties and Uses)>EXERCISE>Q 25

Find the reciprocal ratio of $5:8$.

MEDIUM

10th ICSE

IMPORTANT

Concise Mathematics>Chapter 7 - Ratio and Proportion (Including Properties and Uses)>EXERCISE>Q 25

Find the reciprocal ratio of $\frac{x}{3}:\frac{y}{7}$.

HARD

10th ICSE

IMPORTANT

Concise Mathematics>Chapter 7 - Ratio and Proportion (Including Properties and Uses)>EXERCISE>Q 26

If$(x + 3) : (4x + 1)$ is the duplicate ratio of $3 : 5,$ find the value of $x.$

 

HARD

10th ICSE

IMPORTANT

Concise Mathematics>Chapter 7 - Ratio and Proportion (Including Properties and Uses)>EXERCISE>Q 27

If $m : n$ is the duplicate ratio of $m + x : n + x;$ show that $x^2=mn.$

HARD

10th ICSE

IMPORTANT

Concise Mathematics>Chapter 7 - Ratio and Proportion (Including Properties and Uses)>EXERCISE>Q 28

If $(3x - 9):(5x + 4)$is the triplicate ratio of $3 : 4,$ find the value of $x.$
 

HARD

10th ICSE

IMPORTANT

Concise Mathematics>Chapter 7 - Ratio and Proportion (Including Properties and Uses)>EXERCISE>Q 29

Find the ratio compounded of the reciprocal ratio of $15:28,$ the sub-duplicate ratio of $36:49$ and the triplicate ratio of$5:4.$
 

HARD

10th ICSE

IMPORTANT

Concise Mathematics>Chapter 7 - Ratio and Proportion (Including Properties and Uses)>EXERCISE>Q 30

If $r^2= pq,$ show that $p : q$ is the duplicate ratio of $(p+r):(q+r).$
 

HARD

10th ICSE

IMPORTANT

Concise Mathematics>Chapter 7 - Ratio and Proportion (Including Properties and Uses)>EXERCISE>Q 30

If $(p-x) : (q-x)$ be the duplicate ratio of $p:q$, then show that $:\frac{1}{p}+\frac{1}{q}=\frac{1}{x}.$