CTET Solved Paper - UTET April 2015
121. The value of (0.1 x 0.1 x 0.1 + 0.02 x 0.02 x 0.02) / (0.2 x 0.2 x 0.2 + 0.04 x 0.04 x 0.04) is
- Option : D
- Explanation : (0.1 x 0.1 x O.l + 0.02 x O.02 x O.02)/(0.2 x 0.2 x 0.2 + 0.04 x O.04 x O.04) =(0.001 + 0.000008)/(0.008 + 0.000064) = 0.001008 / 0.008064 = 1/8 = 0.125
- Option : C
- Explanation : Given, lb = x.
bh=y,lb=z.
lb x bh x lh = xyz.
l2 b2 b2 =xyz
Volume = lbh = √xyz
123. How many numbers between 100 and 300 are divisible by 7?
- Option : B
- Explanation : Number of numbers divisible by 7 between 100 and 300 = 300/7 - 100/7 = 42 - 14 = 28
124. The statement obtained by interchanging the 'premise' and 'conclusion' of a theorem is called
- Option : A
- Explanation : A converse of a theorem is a statement formed by interchanging what is given in a theorem and what is to be proved.
- Option : D
- Explanation : Total literate = 25% of 1000 =250. Male = 60% of 1000 = 600. Female = 40% of 1000 = 400. Male literate = 20% of 600 = 120. ∴ Female literate = 250 - 120 = 130. ∴ Required percentage = 130/400 xl00 % = 32.5%
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