Question
6 3.5 2.5 ? 8.5
23.75 What should come in place of question of mark (?) in the following number series?Solution
6 × 0.5 + 0.5 = 3.5 3.5 × 1 - 1 = 2.5 2.5 × 1.5 + 1.5 = 5.25 5.25 × 2 - 2 = 8.5 8.5 × 2.5 + 2.5 = 23.75
More Series Questions
If x² + y² + z² = xy + yz + zy (x≠0), then the value of (5x+3y-4z)/2x is
- If [x + (1/x)] = 7, find the value of [x⁴ + (1/x⁴)].
- If (x - y) = 2, then find the value of (x³ - y³ - 6xy).
If 125x3 - 64y3 = (Ax + By) (Dy2 - Cx2 + 20xy) , then the value of A + C - 2B + 3D is:
Given a triangle with two sides measuring 12 cm and 16 cm, which of the following cannot be a possible length for the third side?
- If, a 3 + b 3 = 485 and a + b = 5, then find the value of (1/a) + (1/b) .
If (a2 + 1/a2 ) = 66, then find the value of (a3 – 1/a3 ).
- If p = 35 - q - r and pq + r(p + q) = 324, then find the value of (p² + q² + r²).
If 10x2 – 6xy+y² – 4x+4= 0, then find the value of (3x+2y).
Relevant for Exams:
