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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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## Two Smallest Positive Integers !

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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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## Logic question-2 How many squares do you see? Rate the problemSpam (0)Hard (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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