Total Pageviews

Friday 24 July 2015

Math 01

1.Find the value of  tan10.tan20.tan30…………tan880.tan890.
a)1/2 b)1/√3 c)1 d)√3

2. Find the value of sin400 – cos500.
a)1 b)1/2 c)1/√2 d)√3/2

3.Find the value of sin2750 + sin2150.
a)1 b)2 c)1/2 d)√3

4. If 6x+y =1 and 6x-y =6 then find the value of x
a)1/2 b)1/4 c)1/3 d)1/-2

5.Find the value of:- 999---x 99
a)9899 b)98999 c)99899 d)99998

6. 98213-(329+2958+41367+10651)=?
a)32908 b)42908 c)42708 d)52708

7.1/20+1/30+1/42+1/56+1/72=
a)1/36 b)4/36 c)5/36 d)None of these.

8.If a=1.2, b=2.1 and c= -3.3, then the value of (a3 + b3 +c3 – 3abc) is:
a)2.5 b)1 c)0 d)None of these.

9.Which of the following numbers is a multiple of 11?
a)978626 b)112114 c)447355 d)869756

10. 1-2+3-4+5-6+…..+51=?
a)25 b)26 c)27 d) None of these

11.935421 x 625=?
a)575648125 b)584638125 c)585628125 d)584649125

12.106 x106 + 94 x 94 =?
a)21032 b)20032 c)23032 d)20072

13.The ratio between two numbers is 2:3. If the consequent is 24, the antecedent is:
a)36 b)16 c)48/5 d)72/5

14. A number is 25  more than its 2/5th . The number is:
a)125/3 b)125/7 c)60 d)80

15.The difference between two numbers is 5 and the difference between their squares is 65. The numbers are:
a)15 , 10 b)14, 9 c) 12, 7 d) 9,4
16.  273=?
a)19683 b)18683 c)17683 d)None of these.

17.45879 x 111=?
a)5092569 b)509469 c)609469 d) None of these

18. 994 x 1004=?
a)999976 b)997976 c)987976 d) None of these

19.(1298)2 =?
a)1484804 b)1664804 c)1684804 d) None of these

20.1234 x 9999=?
a)12338766 b)12358766 c)12338763 d) None of these

21. By selling oranges 32 a rupee, a man loses 40%. How many for a rupee should he sell in order to gain 20%?
a)15 b)16 c) 17 d) None of these

22.If A’s salary is 25% more than that of B, then how much per cent is B’s salary less than that of A?
a)20% b) 25% c)2.5% d) None of these

23.If 90% of A= 30% of B and B=X% of A, find the value of X
a)100 b)200 c)300 d)400

24.If the price of sugar falls down by 10%, by how much percent must a householder increase its consumption, so as not to decrease expenditure in this item?

a)9% b)10% c)11% d) None of these

25.The incomes of A and B are in the ratio 3:2 and their expenditures in the ratio 5:3.  If each saves Rs.2000, what is the income of A and B?

a)Rs.8000/- , Rs.12000/- b)Rs.12000/-, Rs.8000/- c)Rs.6000/-, Rs.4000/- d) None of these

No comments:

Post a Comment