10th Class Maths MCQ with Answers
If a ; b = x ; y then by invertendo theorem.
b/a =y/x
a/a-b = x/x-y
a/x = b/y
a+b/b = x+y/y
In continuous proportion a:b=b:c,ac = b2 ,b is _______ proportional between a and c.
Fourth
None of these
Third
Mean
In proportion 7 : 4::p:8, p = ________________:
14
-14
32/7
1/2
A third proportion of x +y and x2 – y2 is:
(x + y)2 (x – y)
(x + y) (x – y)2
(x2 + y2) (x – y)
(x + y) (x – y)
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