`7960 + 2956 - 8050 + 4028`

A, B and C entered into a partnership. A invested Rs. 2560 and B invested Rs.2000. At the end of the year, they gained Rs. 1105, out of which A got Rs. 320. C's capital was R s .2840 b. \ R s .4028 c. R s .4280 d. R s .4820

Silane (SiH_(4)) burns in air as: SiH_(4)(g) +2O_(2)(g) rarr SiO_(2)(s) +2H_(2)O(l) the standard Gibbs energies of formation of SiH_(4)(g), SiO_(2)(s) , and H_(2)O(l) are +52.3, -805.0 , and -228.6kJ mol^(-1) , respectively. Calculate Gibbs enegry change for the reaction and predict whether the reaction in spontaneous or not.

Express 0.29bar(56) in the form (p)/(q) (vulgar fraction ( a) (2956)/(1000) (b) (2956)/(10000) (c) (2927)/(9900) (d) None of these

Let (1+x+x^(2))^(2014)=a_(0)+a_(1)x+a_(2)x^(2)+a_(3)x^(3)+ . . . +a_(4028)x^(4028), and let A=a_(0)-a^(3)+a_(6)- . . . +a_(4026) B=a_(1)-a_(4)+a_(7)- . . . . . . . -a_(4027) , C=a_(2)-a_(5)+a_(8)- . . . .+a_(4028) , Then-

A shopkeeper bought 30 kg of rice at the rate of Rs. 70 per kg and 20 kg of rice at the rate of Rs. 70.75 per kg. If he mixed the two brands of rice and sold the mixture at Rs. 80.50 per kg, his gain is

A leak in the bottom of a tank can empty the full Tank in 8 hours.An inlet pipe fills water at the rate of 6 litres a minute.When the tank is full the inlet is opened and due to the leak,the tank is empty in 12 hours.How many litres does the tank hold? 7580 b.8290 c.7960 d.8640

2.5(a) 8.10 (b) 8.51 (approx.) (c) 18.05 (d) 80.50 (approx.)