22)
[tex] y=\frac{1}{4} [/tex]
And we have to calculate [tex] \frac{15}{y} [/tex]
So we plug the value of y , that is [tex] \frac{1}{4} [/tex] in place of y in [tex] \frac{15}{y} [/tex]
So we get
[tex] \frac{15}{\frac{1}{4}} = \frac{(15 * \frac{4}{1}) }{(\frac{1}{4} * \frac{4}{1}) } = (15 * \frac{4}{1}) = 15*4 = 60 [/tex]
Option D is correct
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23)
Out of 360 degrees , 60 degrees part is unshaded and it means 300 degrees part is shaded
So part shaded = 300/360 = 5/6
Option A is correct
