If **a : b = 5 : 9 and b : c = 4: 7, find a : b : c.**

Question

If **a : b = 5 : 9 and b : c = 4: 7, find a : b : c.**

A. 30/7

B. 31/7

C. 32/7

D. 34/7

Correct Answer :

C. 32/7

X / Y = 3 / 4 \Leftrightarrow (4 x + 5 y) / (5 x + 2 y) = (4 (x / y) + 5) / (5 (x / y) - 2) = (4 (3 / 4) + 5) / (5 (3 / 4) - 2) = (3 + 5) / (7 / 4) = 32 / 7

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**A mixture contains alcohol and water in the ratio 4 : 3. If 5 litres of water is added to the mixture, the ratio becomes 4: 5. Find the quantity of alcohol in the given mixture**

A. 11 ltr

B. 12ltr

C. 10ltr

D. 15ltr

Discuss this answer

Divide Rs. 672 in the ratio 5 : 3.

Discuss this answer

If **a : b = 5 : 9 and b : c = 4: 7, find a : b : c.**

A. 30/7

B. 31/7

C. 32/7

D. 34/7

Discuss this answer

***Divide Rs.* 1162 among A, B, C in the ratio 35 : 28 : *20.***

Discuss this answer

A bag contains 50 p, 25 P and 10 p coins in the ratio 5: 9: 4, amounting to Rs. 206. Find the number of coins of each type.

Discuss this answer

Answer 1

A. 252,420

Answer 2

B. 254.487

Answer 3

C. 273,456

Answer 4

D. 287,420

Answer 5

A. a=500.b=390,c=240

Answer 6

B. a=490.b=392,c=280

Answer 7

C. a=498.b=396,c=287

Answer 8

D. a=491.b=372,c=286

Answer 9

A. 50p coins=200,25p coins=360,10p coins=160

Answer 10

B. 50p coins=200,25p coins=400,10p coins=120

Answer 11

C. 50p coins=240,25p coins=360,10p coins=120

Answer 12

D. 50p coins=205,25p coins=365,10p coins=150

If **a : b = 5 : 9 and b : c = 4: 7, find a : b : c.**

Correct Answer :

Show all Ratio and Proportion MCQ

Related Questions

**A mixture contains alcohol and water in the ratio 4 : 3. If 5 litres of water is added to the mixture, the ratio becomes 4: 5. Find the quantity of alcohol in the given mixture**

Divide Rs. 672 in the ratio 5 : 3.

If **a : b = 5 : 9 and b : c = 4: 7, find a : b : c.**

***Divide Rs.* 1162 among A, B, C in the ratio 35 : 28 : *20.***

A bag contains 50 p, 25 P and 10 p coins in the ratio 5: 9: 4, amounting to Rs. 206. Find the number of coins of each type.

Also checkout

If a : b = 5 : 9 and b : c = 4: 7, find a : b : c.

Correct Answer :

Show all Ratio and Proportion MCQ

Related Questions

A mixture contains alcohol and water in the ratio 4 : 3. If 5 litres of water is added to the mixture, the ratio becomes 4: 5. Find the quantity of alcohol in the given mixture

Divide Rs. 672 in the ratio 5 : 3.

If a : b = 5 : 9 and b : c = 4: 7, find a : b : c.

Divide Rs. 1162 among A, B, C in the ratio 35 : 28 : 20.

A bag contains 50 p, 25 P and 10 p coins in the ratio 5: 9: 4, amounting to Rs. 206. Find the number of coins of each type.

Also checkout

If **a : b = 5 : 9 and b : c = 4: 7, find a : b : c.**

**A mixture contains alcohol and water in the ratio 4 : 3. If 5 litres of water is added to the mixture, the ratio becomes 4: 5. Find the quantity of alcohol in the given mixture**

If **a : b = 5 : 9 and b : c = 4: 7, find a : b : c.**

***Divide Rs.* 1162 among A, B, C in the ratio 35 : 28 : *20.***