What is the reflection of the point (6, -3) in the line y = 2?
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If the average age of four children is 12 years and the average age of these children and their fathers is 20 years, what is the age of the father?
Electric tram was invented by?
In the following question, select the odd word pair from the given alternatives.
In the following question, out of the four alternatives, select the alternative which is the best substitute of the words/sentence.Of a disease or poison extremely severe or harmful in its effects
In the following question, out of the four alternatives, select the word similar in meaning to the word given.
Fissure
In the following question, out of the four alternatives, select the word opposite in meaning to the word given.
Abeyance
If x = a + 1a, y = a - 1a ,(a>0), then the value of x4+y4-2x2y2 is