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## Triangular matrix

If U1, U2 are upper triangular and L1, L2 are lower triangular, which of the following are triangular?  U1 + U2  U1U2  U12  U1 + L1  U1L1  L1 +...
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## Speed of the boat in stream

Upstream boat speed=18km/hr and this speed is 500% more than stream speed. What is the downstream speed of the boat? Source Rate the problemSpam (0)Hard (0)Helpful (0)Wow (0)
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## Faster runner, slower runner

Two runners start on a straight one-mile race track. The slower runner S is given a handicap and starts first. The faster runner F then starts and after 4...
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## Age problem-2

One number is 3 times another number. If the larger number is diminished by 8, the resultant is 7 more than twice the smaller number. Find the numbers. ...
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## Speed, distance and time

A bicycle wheel has a diameter of 63cm. Calculate how many times the wheel turns round in traveling km. Use the value 22/7, for π Rate the...
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## Arithmetic Progression

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## Logic question-2

How many squares do you see? Rate the problemSpam (0)Hard (0)Helpful (0)Wow (0)
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## Laplace transform

Find the Laplace transform of the following function: Rate the problemSpam (0)Hard (0)Helpful (0)Wow (0)
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## Find angle BAC

TA and TB are tangents to the circle. If ABC=48°, ATB= 72°,calculate angle BAC. Rate the problemHard (1)Spam (0)Helpful (0)Wow (0)
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## Money double problem

A sum of money triples itself in 20 years. When will it double? Options are: a) 5 years b) 15 years c) 10 years d) 8 years Rate the...
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## Logarithm

Prove that: log base 16 (XY) = 1/2 log base 4 (X) + 1/2 log base 4 (Y) Include the logarithmic rules used to prove the statement. Rate...
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## Arithmetic Progression: Find x and y

If 3, x, y and18 are arithmetic progression (), find x and y. Rate the problemSpam (0)Hard (0)Helpful (0)Wow (0)
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## Word problem

A garrison of 120 men is provisioned for 24 weeks at 350 gm per day per man. How many men must leave so that the same provision may last...
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## contest 11/09/16

Antonym of   ‘ maze ‘  is : a) complexity b) convoluted c) simplicity d) lenient Rate the problemSpam (0)Hard (0)Helpful (0)Wow (0)
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## contest 11/09/16

Synonym of  ‘ liberal ‘  is: a) direct b) copious c) restrained d) limited Rate the problemSpam (0)Hard (0)Helpful (0)Wow (0)
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## Increase in cube dimension

One dimension of a cube is increased by 1 inches to form a rectangular block. Suppose that the volume of the new block is 150 cubic inches. find the...
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