10th Class Maths MCQ with Answers
If y is directly proportional to x then this is written as:
y = k/x
y? x
none of these
y? 1/x
If m ?1/n then:
m=kn
n=km
m/n =k
mn = k
If 6:m::9:12, then m = ………..
6
9
1
8
If x ?1/y and y ?1/z then
x ? z
xy ?z
xz ?y
y ?1/z
In ratio x: y,y is called………………..
Consequence
Antecedent
None of these
Relation
The third proportional of x2 and y2 is
y2/x2
y2/x4
x2y2
y4/x2
In a ratio a : b ,a is called.
Consequent
None of these
Relation
Antecendent
In a proportion a : b :: d, b and c are called:
extremes
fourth proportion
third proportion
means
If 24/7 = 6/x , then 4 x = ………………………
42/24
7/4
4
7
In continued proportion a:b = b:c, c is said to be __ proportional to a and b,
Means
Fourth
None of these
Third
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