`9/25 - 12/25 + 7/25`

a) 6/25 + 7/25 + 3/25

In Delta ABC if r_1=2r_2=3r_3 and D is the mid point of BC then Cos/_ADC is (a) 7/25 (b) -7/25 (c) 24/25 (d) -24/25

If tantheta=3/4 , then cos^2theta-sin^2theta= (a) 7/(25) (b) 1 (c) -7/(25) (d) 4/(25)

The eccentricity of the ellipse 9x^2+25 y^2-18 x-100 y-116=0 is a. 25//16 b. 4//5 c. 16//25 d. 5//4

The eccentricity of the ellipse 9x^2+25 y^2-18 x-100 y-116=0 is a. 25/16 b. 4/5 c. 16/25 d. 5/4

25-25+25

Evalaute: (i) 7/12 + -4/3 , (ii) -12/25 + -5/6 , (iii) -27/32 + (-9/16) (iv) -18 + 6/5 , (v) 26 + (-1/13) (vi) 1/25 + -5

Two non-negative integers are chosen at random, then the probability that the sum of their squares is divisible 5 is 7/(25) (b) 8/(25) (c) 9/(25) (d) 5/(25)

Find the mode of the following data in each case: 14, 25, 14, 28, 18, 17, 18, 14, 23, 22, 14, 18 7, 9, 12, 13, 7, 12, 15, 7, 12, 7, 25, 18, 7

12% as a fraction is (a) 3/(25) (b) 4/(25) (c) 3/(20) (d) 6/(25)