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The correct answer is D
If (p/q) = (7/8) and (q/r) = (3/11), then the find the value of {(r – p)/(p + q)}.
If 9x² + y² = 37 and xy=2, x, y>0, then the value of (27x³ + y³) is:
The mean age of 30 students was calculated as 15 years. However, it was later discovered that one student's age was mistakenly entered as 15 years inste...
Out of total number of people in an office, 40% are males. Ratio of number of married to that of unmarried people in the office is 3:2 while ratio of nu...
If x + 1/x = 5 then find out the value of x⁵ + 1/(x⁵)?
In a club of singers and dancers, 10% of the artists are absent on a particular day and 90% of the present artists are dancers. If 2,250 singers are pr...
Which of the following statements is correct?
I. If x = 12, y = –2 and z = –10, then x³ + y³
+ z³ = 720
II. If x + y = 48 an...
Solve for x in the equation: 3(x + 2) + 2(2x - 5) = 5x + 9
