DNS Quiz

Welcome to your DNS test

1) Select the correct answer from the options given below.
If    3(2x+2) = 81,   then x =
2) If 3(2x+2) = 81, then x =
3) If one root of the quadratic equation 5x2 + 13x + k = 0 is reciprocal of the other, then k is equal to
4) If { 8 = 1 / (1/x -3) } then x =
5) Jacob uses 30% of his monthly earnings for rent and 50% of the remaining amount for food. If he spends $525 for food, how much does he pay for rent?
6) A sphere of radius 5 has the same volume as a cube with an edge approximate length = …………….
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