Mathematics
If a certain number is doubled and the result is increased by 7, the number obtained is 19. What is the original number?
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A polygon with 8 sides is called:
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How many endpoints does a line have?
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A student scores 60% in English, 70% in Mathematics, and 80% in Science. If the maximum marks in each subject are 100, what is his overall percentage?
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A bag contains 4 red, 5 blue, and 6 green balls. Two balls are drawn at random. What is the probability that both are green?
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If the arithmetic mean of seventy-five numbers is 35, and each number is increased by 35, then the mean of the new numbers is:
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A sum of money at simple interest amounts to Rs. 815 in 3 years and to Rs. 854 in 4 years.
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What is the value of 56 + (-19)?
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Two angles are supplementary. One angle is 12° less than three times the other. What is the measure of the larger angle?
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