Direction: All the squares except one is filled with the number according to a particular schemes. Find outt number following the scheme for question number 57-58.
57.
25
35
17
5
47
61
?
11
72
a.
90
b.
64
C.
88
d.
87
58.
80
160
320
640
40
20
1100
5
10
?
a.
b.
1200
1280
d.
1180

percentage - 25%

probability - 0.25

we know,

total amount of students in class = 20

total boys = 10

total girls = 10

no of girls who wear glasses = 10/2 = 5

probability of choosing a girl with glasses is =

number of girls wearing glasses/total number of students in the class = 5/20

thus, percentage of selecting a girl wearing glasses will be

= 5/20 × 100

= 5 × 5

25%

therefore,

probability will be 0.25

happy to

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what is

step-by-step explanation:

363 square inches

step-by-step explanation:

surface area of a pyramid is b + 1/2ph

b is the area of the base: 11 x 11 = 121

p is the perimeter of the base: 11 + 11 + 11 + 11 = 44

h is the height of the pyramid: 11

121 + 1/2(44)(11)

121 + 242

363