Question
The price of an article is increased by 25%. By what
percentage should the new price be reduced to get back the original price?Solution
Let original price = 100 Increased price = 100 + 25% of 100 = 125 To get back to 100 from 125: Decrease = 125 − 100 = 25 Required % decrease = (25 / 125) × 100 = 20% Answer: 20% decrease
Which of the following matrices is both symmetric and skew-symmetric?
A ladder leaning against a wall makes an angle of 60° with the ground. If the ladder is 10 meters long, how high up the wall does it reach?
69 73 64 80 ? 91
Integrated circuits are made up of:
The sum of the ages of a father and his son is 50 years. After 5 years, the father's age will be twice that of his son. What are their present ages?
67.2, 8.4, 1.2, 0.2, 0.04, ?
Calculate the simplified value of the given expression:
...
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