Algebra MCQs

542 questionsQuantitative-AptitudePage 28 of 61

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Question 244easy
If p = 99, then the value of p(p2 + 3p + 3) is?
Question 245easy
If (a - b) = 4 and ab = 2, then (a3 - b3) is equal to:
Question 246easy
If $$3x + \frac{1}{{2x}} = 5{\text{,}}$$   then the value of $${\text{8}}{x^3}{\text{ + }}\frac{1}{{27{x^3}}}\,{\text{is?}}$$
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Question 247easy
If a = 7, b = 5 and c = 3, then the value of a2 + b2 + c2 - ab - bc - ca is?
Question 248easy
Ratio of three numbers x, y, z are in 2, 3, 5 respectively and the sum of x, y, z is 80. If the number z is given by the equation z = ax - 8, then a is ?
Question 249easy
If $${\text{A}}:{\text{B}} = \frac{1}{2}:\frac{3}{8}{\text{,}}$$    $${\text{B}}:{\text{C}} = \frac{1}{3}:\frac{5}{9}$$   and $${\text{C}}:{\text{D}} = \frac{5}{6}:\frac{3}{4}{\text{,}}$$     then find the ratio of A : B : C : D = ?
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Question 250medium
If x = 997, y = 998 and z = 999 then the value of x2 + y2 + z2 - xy - yz - zx is?
Question 251medium
If 50% of (p - q) = 30% of (p + q), then p : q is equal to?
Question 252easy
If $${x^2} + \frac{1}{{25{x^2}}} = \frac{8}{5}$$   and x > 0, then what is the value of $${x^3} + \frac{1}{{125{x^3}}} = ?$$