24
Q:

Paint needs to be thinned to a ratio of 2 parts paint to 1.5 parts water. The painter has by mistake added water so that he has 6 litres of paint which is half water and half paint. What must he add to make the proportions of the mixture correct?

A) 1 litre paint B) 1 litre water
C) ½ litre water and one litre paint D) ½ litre paint and one litre water

Answer:   A) 1 litre paint



Explanation:

At the moment the paint is 3 liters of paint and 3 liters of water. We need to add to this to make the new ratio 2 liters paint to 1.5 liters water. As this is equivalent to 4 : 3 we can see that we have the right amount of water, and just need 1 liter of paint to make it correct.

Q:

In wallet, there are notes of the denominations Rs. 10 and Rs. 50. The total number of notes is 12. The number of  Rs. 10 and  Rs. 50 notes are in the ratio of 1 : 2. Total money in the wallet is:

 

A) ₹ 360 B) ₹ 280
C) ₹ 110 D) ₹ 440
 
Answer & Explanation Answer: D) ₹ 440

Explanation:
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14 2133
Q:

The ratio of cost of table and chair is 9 : 4. The cost of table is Rs 1250 more than cost of chair. What is the cost (in Rs) of chair?

 

A) 1000   B) 1200  
C) 800   D) 1500
 
Answer & Explanation Answer: A) 1000  

Explanation:
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6 1689
Q:

In  ABC,if the ratio of angles is in the proportion 3 : 5 : 4, then the difference between the biggest and the smallest angles (in degrees)is:

 

A) 20∘ B) 25∘
C) 30∘ D) 35∘
 
Answer & Explanation Answer: C) 30∘

Explanation:
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4 1408
Q:

The total number of students in a class is 65. If the total number of girls in the class is 35, then the ratio of the total number of boys to the total number of girls is

 

A) 6:7   B) 7:6  
C) 13:7   D) 7:13
 
Answer & Explanation Answer: A) 6:7  

Explanation:
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1 1280
Q:

Rahul spends some part of his income and saves the remaining part. The ratio of his expenditure and saving is 6 : 1. If Rahul’s income is Rs 42000,then what will be his expenditure (in Rs)?

 

A) 34000   B) 30000  
C) 32000   D) 36000
 
Answer & Explanation Answer: D) 36000

Explanation:
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4 1307
Q:

The sum of two numbers is 248 and their difference is 8. What is the ratio of the two numbers?

 

A) 15 : 16 B) 7 : 8
C) 6 : 7 D) 13 : 28
 
Answer & Explanation Answer: A) 15 : 16

Explanation:
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7 10217
Q:

If an amount of Rs.990 is divided among A, B and C in the ratio of 3 : 4 : 2, then B will get:

 

A) Rs. 247.5 B) Rs. 440
C) Rs. 110 D) Rs. 350
 
Answer & Explanation Answer: B) Rs. 440

Explanation:
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8 11186
Q:

The weights of Jaya and Vijaya are in the ratio 4:5. If the total of their weights is 72 kg, what is Vijaya's weight?

 

A) 40 kg B) 34 kg
C) 32 kg D) 42 kg
 
Answer & Explanation Answer: A) 40 kg

Explanation:
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6 1421