CTET Solved Paper - UPTET October 2017 Paper2
- Option : D
- Explanation : (D) C = A - B = {B,E}
Then, number of subsets of C=22 = 4
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98. The perimeter of a rhombus whose diagonals are 10 cm and 24 cm is
- Option : D
- Explanation : (D)
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- Option : C
- Explanation : (C) Given, number of observation in a survey is 40.
Sum of first 10 observation = 10 × 4.5 = 45
and sum of remain 30 observation = 3.5 × 30 = 105
Sum of 40 observation = 105 + 45 = 150
∴ Mean of 40 observation = 150/40 = 3.75
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- Option : A
- Explanation : (A)
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