(4 / 5) × ? × (3 / 7) = (16 / 105)
8/9
5/7
4/9
3/7
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1
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A fires 5 shots to B's 3 but A kills only once in 3 shots while B kills once in 2 shots. When B has missed 27 times, A has killed:
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2
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If \(\left( {x + \frac{1}{x}} \right) = 3,\) then \(\left( {{x^2} + \frac{1}{{{x^2}}}} \right)\) is = ?
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3
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If the sum of two numbers is 22 and the sum of their squares is 404, then the product of two numbers is = ?
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4
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Solve this 9 3/7 - 6 4/7 - ? = 14 4/7
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5
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Supply the two missing figures in order indicated by x and y in the given equation, the fractions being in their lowest terms.
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6
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( √5 – 2)^2 = x – √80
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7
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What number must be added to the expression 16a2 - 12a to make a perfect square ?
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8
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To fill a tank, 25 buckets of water is required. How many buckets of water will be required to fill the same tank if the capacity of the bucket is reduced to two-fifth of its present ?
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9
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\(\frac{{{{\left( {3\frac{2}{3}} \right)}^2} - {{\left( {2\frac{1}{2}} \right)}^2}}}{{{{\left( {4\frac{3}{4}} \right)}^2} - {{\left( {3\frac{1}{3}} \right)}^2}}}\div\frac{{3\frac{2}{3} - 2\frac{1}{2}}}{{4\frac{3}{4} - 3\frac{1}{3}}}\) = ?
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10
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A man has some hens and cows. If the number of heads be 48 and the number of feet equals 140, then the number of hens will be:
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