Q1. Answer the following (6)
1) If x:8 = 8:4 , find the value of x
2) Convert
12
----
15
in to percentage
3) Find the reduced form of
144
-------
1200
4) Sum of two numbers is 27. And difference is 3. Find the numbers.
5)
5x
---------
4
= 20 .Find the value of x
6) Check whether 9,15,25 are in continued proportion or not .
Q2. Solve the following (10)
1) Solve 4x+3y =18 ; 3x-2y =5
2) If ( x+5 ) : ( x+7 ) = ( x-1 ): ( x+2) Find the value of x
3) The ratio of length and breadth of a rectangle is 4:5 and its perimeter is 72cm.Find the
length and breadth of the rectangle .
4) If
=
5
2
, find the value of
6+5
6−5
5) Compare the pair of ratios
2√3
5√7
,
√28
√75
Q3. Answer the following any three questions………………………. (9)
1) √+13+√−1
√+13−√−1
= 3
2) Sum of the digits of a two digit number is 12.The number obtained by interchanging the
digits exceeds the original number by 36. Find the two digit number.
3) Ratio of incomes of Ram and Shyam is 8:9.Ratio of their expenses is 9:11.If each one saves
₹ 28000, find their incomes.
4) If
+−
=
+−
=
+−
Then prove that
+
=
+
=
+
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