Question
There are 3 natural numbers. If the average of any 2
numbers is added with the third number 34, 30 and 28 will be obtained. Find the numbers.Solution
Let the numbers be a, b and c Now (a+b)/2 + c = 34 …………………. (i) (a+c)/2 + b = 30 ………………….(ii) (b+c)/2 + a = 28 ………………….(iii) By solving the equations, we get a + b + 2c = 68 a + c + 2b = 60 b + c + 2a = 56 by adding above equations we get, 4a + 4b + 4c = 184 a + b + c = 46 from equation (i), (a+b)/2 + c = 34 a + b + c + c =34 × 2 46 + c = 68 c = 22 similarly from equation (ii) and (iii) b = 14 and a = 10
(23 × 8) – (13 × 5) + 67 =? x 6         Â
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(190/38) × (55/5) + (306/18) = ?
24% of 400 × 16% of ? = 384
140% of 75 + 152 - 160 = ?
(2500 ÷ √625) × √(42.25) = ? ÷ 4
What will come in the place of question mark (?) in the given expression?Â
(240% of 175 ÷ √16) X 6 + 80% of 400 = ?3 + 179 + 42
Evaluate:
7.5 + 12 ÷ (4 × 1.5) − 2.4
?2 - (40% of 240) = 25 X 5
- What will come in the place of question mark (?) in the given expression?
32% of 74% of ? = 16% of 37% of 180
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