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1) Anne's 1/3rd of money is equal to John's 1/9th of money. If together they have $800.Difference between what they have isA) 200 B) 400 C) 600 D) 800
Answer & Explanation
Answer: 400 (1/3 of A = 1/9 of J & A+J = 800
A = 1/3J; 4/3J = 800 ; J = 600; A = 200; Difference is 400
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2) If a/b= 3/4; (4a + b)/(4a-b) =?A) a+b B) a-b C) 2 D) 1
3) 1/(1 + a(n - m) ) + 1/(1 + a(m-n)) = ?A) 2 B) 1 C) 4 D) 3
Answer & Explanation
Answer: 1 ( 1/(1 + a(n - m) ) + 1/(1 + a(m-n)) =
[1/( (1 + (an/ am))] + [1/( (1 + (am/ an))]
= am + an/ am + an =1)
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