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CAT
IMPORTANT
Earn 100

One-fifth of the certain journey is covered at the rate of 20 Km/h, one-fourth at the rate of 50 Km/h, and the rest at 55 Km/h. Find the average speed for the whole journey.

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Important Questions on Average

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IMPORTANT
How to prepare for Quantitative Aptitude for the CAT>Chapter 5 - Average>Level of Difficulty>Q 1
The average of the first fifteen natural numbers is -
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CAT
IMPORTANT
How to prepare for Quantitative Aptitude for the CAT>Chapter 5 - Average>Level of Difficulty>Q 14
The average of 10 men is decreased by 5 kg, when one of them weighing 100 kg is replaced by another person. The new person is again replaced by another person, whose weight is 10 kg lower than the person he replaced. What is overall change in the average due to this dual changes ?
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How to prepare for Quantitative Aptitude for the CAT>Chapter 5 - Average>Level of Difficulty>Q 20

The average price of 3 precious diamond studded platinum thrones is ₹97610498312. If their prices are in the ratio 4:7:9. The price of the cheapest is

MEDIUM
CAT
IMPORTANT
How to prepare for Quantitative Aptitude for the CAT>Chapter 5 - Average>Level of Difficulty>Q 25
Find ∑r=1n(n+1)r 
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CAT
IMPORTANT
How to prepare for Quantitative Aptitude for the CAT>Chapter 5 - Average>Level of Difficulty>Q 43
A certain number of tankers were required to transport 60 lakh litres of oil from the IOCL factory in Mathura. However, it was found that since each tanker could take 50,000 litres of oil less, another 4 tankers were needed. How many tankers were initially, planned to be used ?
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CAT
IMPORTANT
How to prepare for Quantitative Aptitude for the CAT>Chapter 5 - Average>Level of Difficulty>Q 44
One collective farm got an average harvest of 21 tons of wheat per hectare and another collective farm that has 12 acres of land less given to wheat, got 25 tons from a hectare. As a result, the second farm harvested 300 tons of wheat more than the first. How many tons of wheat did each farm harvested ?
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CAT
IMPORTANT
How to prepare for Quantitative Aptitude for the CAT>Chapter 5 - Average>Level of Difficulty>Q 50
Rozer a great tennis player has 10 boxes with him, which have an average of 25 tennis balls per box. If each box has at least 8 balls and no two boxes have an equal numbers of balls, then what is the maximum possible numbers of balls in any box ?
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CAT
IMPORTANT
How to prepare for Quantitative Aptitude for the CAT>Chapter 5 - Average>Level of Difficulty>Q 33
One fashion house has to make 810 dresses and another one, 900 dresses during the same period of time. In the first house, the order was ready 3 days ahead of time and in the second house, 6 days ahead of time. How many dresses did each fashion house make a day if the second house made 21 dresses more a day than the first ?