1.

In the given figure, it is given that AOB is a straight line and 4x = 5y. What is the value of x?(a) 100 (b) 105 (c) 110 (d) 115

Answer»

(a) 100

Because,

Let the measure of its supplement be 4x and 5y.

Then,

= x + (4/5)x = 180o

= (5x + 4x)/5 = 180

= 9x = 180 × 5

= 9x = 900

= x = 900/9

= x = 100



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