10th Class Maths MCQ with Answers
In a proportion a:b:c: d , band c are called………….
fourth proportional
extrems
means
None of these
If y2? 1/x3then
y2 = k/x3
y2= 1/x3
y2= kx3
y2= x3
If x and y varies directly, then x = ……………….
y
ky
k/y
k
If a : b =c: d then theorem of component-dividend o is:
a-b:a+b = c-d : c+d
a : c = b : d
b : d = d : a
a : a = b +c
If m ?1/n then:
n=km
m/n =k
mn = k
m=kn
If w varies inversely as p2 , then k = …………….
wp
w/p2
wp2
p2/w
In proportion 7:4::p:8, p =……………
14
56
28
1
If four quantities a , b ,c and d are related as a : b :: c : d Then d is called:
second proportional
fourth proportional
first proportional
third proportional
A relation between two quantities of the same kind is called:
variables
proportion
variation
ratio
Newton’s law of Gravitation is an example of.
Direct variation
Inverse variaton
variation
Joint variation
If a : b =x:y then by alternendo theorem
a+b/b = x+y/y
a/x = b/y
a/b = x/y
a-b/x = x-y/v
Third proportional of a3, 3a2 is………………….
9a
9a4
9a7
3a5
If a/b =c/d then by alternendo property:
b/a = d/c
a/c = b/d
a-b/b = c-d/d
a/a+b = c/c+d
Value of x in proportion 15:7::x:56
8/15
100
120
15/8
If a/b = c/d then by componendo property.
a/a-b = c/c-d
a-b/b = c-d/d
a/a+b = c /c+d
ab/bc
The continued proportion of 4,m, 9 is…………………….
4 : m ::m : 9
4:9::9:m
9:4::4:m
9:4::m:m
Third proportional of x2 and y2 is:
y2/x4
x2y2
y2/x2
y4/x2
If 7:9::x:27
x=3
x=81
x=7
x=21
In a proposition a:b::c:d, a and d are called.
Fourth proportional
Means
Extremes
None of these
In ratio x : y is called.
None of these
Precedent
Antecedent
Relation
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