IF a catamaran travel at a speed of 20 km per hour in stillwater. So when it travel at a downstream speed 5 kilometre per hour. What will be the time taken by it to travel 90 km.

Since the catamaran is travelling in downstream the speed of the stream as a pin the speed of the ship so its speed is equals to catamaran speed+downstream speed. Which becomes 20+5=25 km/he. Now by applying a formula we get

Time=90/25. We get our answer which is 3.6

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. In following questions, a sequence of groups of alphabets and numbers is provided with one term missing , Choose the missing term from options.

D-4, F-6, H-8, J-10, ?, ?

The letters in the series are alternate and the numbers indicate their position in the alphabets from the beginning.

In following questions, one term in number series is incorrect.

Find out the incorrect number 10, 14, 28, 32, 64, 68, 132

Find out the incorrect number 10, 14, 28, 32, 64, 68, 132

Alternately, the numbers are increased by four and doubled to get the next number>

Thus, 10 + 4 = 14;

14 * 2 = 28;

28 + 4 = 32;

32 * 2 =64 and so on.

So, 132 is wrong and must be replaced by (68 * 2) i.e. 136..

The average weight of 8 cats is 4 kg. If the weight of 2 dogs be included, the average rises by 600 g.The average weight of dogs is :

Average weight of dogs:

=total weight with dogs-total weight of cats

=(10Ã—4.6-8Ã—4)kg

=(46-32)kg

=14 kg is weight of both dogs.

=14/2

=7 is the average weight of dogs.

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