Question
A’s age is 150% of what he was 6 years ago, But 50% of
what it will be after 6 years. What is his present age?Solution
Let present age of A be x years. => 150% of (x - 6) = 50% of (x + 6) => 3(x - 6) = (x + 6) => 3x – 18 = x + 6 => x = 12 years
Select the correct combination of mathematical signs to replace the '@' signs and balance the given equation.
22 @ 6 @ 18 @ 17 @ 2
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75 & 15 # 50 % 2 @...
Select the correct combination of mathematical signs that can sequentially replace the $ signs and make the equation correct.
252 $ 28 $ 17 $ ...
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Select the correct combination of mathematical signs that can sequentially replace ‘*’ sign and balance the equation given below.
42 * 18 ...
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How many meaningful four-letter words can be formed using the 1st, 3rd, 7th, and 8th letters of the word 'PERIPHERAL'?
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