- The arithmetic mean of 1,2,3,.,n is
- If in ∆ABC, AD ┴ BC, and BD : DA =DA : DC, then which
of the following angle is a right triangle
(a) ∟ABC
(b) ∟BAC
(c) ∟CAD
(d) ∟BAD
- - -
34.9 6 is a
(a) terminating decimal
(b)non terminating non repeating decimal
(c) non terminating repeating decimal
(d) none of these .
- If ∆ABC is similar to ∆DEF such that BC = 3 cm, EF = 4 cm
and area of ∆ABC = 54 cm2. Determine the area of ∆DEF.
(a) 96 sq cm
(b) 24 sq cm
(c) 72 sq cm
(d) none
- The mean of n observation is
. If the first item is increased
by 1, second by 2 and so on, then the new mean is
(d) none of these
- On dividing
by a polynomial g (x) , the
quotient and remainder were 
respectively .
Then the polynomial g (x).
- If α, β , γ are roots of polynomial 3x3 +5x2 + 8x + 2 find the
value of α-1, β-1 , γ-1
(a) - 4
(b) - 5
(c) - 8
(d) none of these
- If α & β are the zeroes of the polynomial x2+3x-10 then
- Which one of the following represents the median for the
frequency distribution given below :
(a) 22.35
(b) 22.25
(c) 22.75
(d) 22.85.
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