alleryStart learning →Five times a number, decreased by 8, equals 27. The number is
A35
B7
C9
D5
Answer & Solution
Correct answer: B. 7
5x − 8 = 27 gives 5x = 35, so the number is 7.
Keep practising Quadratic Equation
Browse all Quadratic Equation questions for CA Foundation, or explore more Quantitative Aptitude topics.
Related questions
The cubic (x − 2)²(x + 5) = 0 has the repeated rootHow many real roots does x³ − 8 = 0 have?A number plus its reciprocal is 5/2. The greater such number isThe product of two consecutive positive integers is 132. The smaller isA rectangle has perimeter 34 m and area 60 m². Its longer side isA father is 3 times his son's age. In 10 years he will be twice as old. The son is nowIf α and β are roots of x² − 5x + 4 = 0, then α² + β² isDividing ax² + bx + c = 0 by a gives x² + px + q = 0, where p and q are