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The cost of the Red, Green and Blue colours per kg is Rs. 20, Rs. 15 and Rs. 18 respectively. Rang Mahal is a renowned building in which these three colours are being used in the ratio of 3 : 2 : 4 . The average cost of all the three colours used per kg is

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Important Questions on Averages

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CAT
IMPORTANT
Quantum CAT Also Useful for XAT>Chapter 2 - SNAP>CMAT>Q 7
Rajeev earns 32 times in January, April, July and October than his average earning of ₹600 per month in the rest of the months. So his savings in the January, April, July and October goes to 54 times that of the rest months saving of ₹400 per month in the year. The average expenditure of per month is:
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CAT
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Quantum CAT Also Useful for XAT>Chapter 2 - SNAP>CMAT>Q 8
The average of 3 prime numbers lying between 47 and 74 is 1913. The greatest possible difference between any two out of the 3 prime numbers is:
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CAT
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Quantum CAT Also Useful for XAT>Chapter 2 - SNAP>CMAT>Q 9

The average of 9 numbers is 11. If each of these 9 numbers is multiplied by 5 and then 5 is added to each of these resultant numbers, then the new average is :

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CAT
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Quantum CAT Also Useful for XAT>Chapter 2 - SNAP>CMAT>Q 10

The average score of Dhoni after 48 innings is 48 and in the 49th innings Dhoni score 97 runs. In the 50th innings what is the minimum number of runs required to increase his average score by 2 than it was before the 50th innings.

HARD
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Quantum CAT Also Useful for XAT>Chapter 2 - SNAP>CMAT>Q 11
The average age of Sachin and Ganguli is 35 years. If Kaif replaces Sachin, the average age becomes 32years and if Kaif replaced Ganguli, then the average age becomes 38 years. If the average age of Dhoni and Irfan be half of the average age of Sachin, Ganguli and Kaif, then the average age of all the five people is :
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CAT
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Quantum CAT Also Useful for XAT>Chapter 2 - SNAP>CMAT>Q 13
In a village, the average age of n people is 42 years. But after the verification, it was found that the age of a person had been considered 20 years less than the actual age, so the new average, after the correction, increased by 1. The value of n is
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Quantum CAT Also Useful for XAT>Chapter 2 - SNAP>CMAT>Q 15

On an average 300 people watch the movie in Sahu Cinema hall on Monday, Tuesday and Wednesday and the average number of visitors on Thursday and Friday is 250. If the average number of visitors per day in the week be 400, then the average number of people who watch the movie in weekends (i.e., on Saturday and Sunday) is:

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CAT
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Quantum CAT Also Useful for XAT>Chapter 2 - SNAP>CMAT>Q 18
Amitabh's average expenditure for January to June is ₹4200 and he spends ₹1200 in January and ₹1500 in July. The average expenditure for the months of February to July is :