CTET Solved Paper MCQ - UPTET October 2017 Paper2

96 The ratio of the heights of two right circular cones is 25 : 64 and the ratio of their diameters is 4 : 5. The ratio of their volumes is

A
1 : 3
B
1 : 4
C
5 : 8
D
1 : 2

View Explanation
Comment

97 If A = {x : x is a letter in word BELOW}, B = {x : x is a letter in word WOOL} and C = A - B, then the number of subsets of C is

View Explanation
Comment

C = A - B = {B,E}
Then, number of subsets of C=2² = 4

98 The perimeter of a rhombus whose diagonals are 10 cm and 24 cm is

A
120 cm
B
34 cm
C
68 cm
D
52 cm

View Explanation
Comment

99 The number of observations in a survey is 40. If the mean of the first 10 observations is 4.5 and that of remaining is 3.5, then the mean of the whole survey is

A
2.82
B
3.80
C
3.75
D
4.25

View Explanation
Comment

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

100 A right circular cylinder of maximum volume is cut from a solid cube of edge 14 cm. The total surface of the cylinder is

A
924 cm²
B
1134 cm²
C
2464 cm²
D
616 cm²

View Explanation
Comment

CTET Solved Paper MCQ - UPTET October 2017 Paper2

Follow Us :