SSC CGL Tier-2 25-October-2015 Maths

Two blends of a commodity costing ₹35 and ₹40 per kg respectively are mixed in the ratio 2:3 by weight. If one-fifth of the mixture is sold at ₹46 per kg and the remaining at the rate of ₹55 per kg, the profit percent is

If$$x^{2}+ y^{2}+ z^{2} $$= xy + yx + zx, then the value of $$\frac{3x^{4}+7y^{4}+5z^{4}}{5x ^{2}y^{2}+7y ^{2}z^{2}+3z^{2}x^{2}}$$

Ram solid two horses at the same price, In one he gets a profit 10% and in the other he gets a loss of 10%. Then Ram gets

A and B can do a given piece of work in 8 days, Band C can do the same work in 12 days and A, B, C together complete it in 6 days. Number of days required to finish the work by A and C is

Pipe A can fill an empty tank in 6 hours and pipe B in 8 hours. If both the pipes are opened and after 2 hours pipe A is dosed, how much time B will take to fill the remaining tank?

There is a number consisting of two digits, the digit in the units place is twice that in the tens place and if 2 be subtracted from the sum of the digits, the difference is equal to$$ \frac{1}{6}$$ thof the number. The number is

The value of

 $$ cot41^\circ. cot42^\circ. cot43^\circ.co44. cot45^\circ.  cot46^\circ.cot47^\circ.cot48^\circ. cot49^\circ $$

A man purchases some orangesat the rate of 3 for 40 and the same quantity at 5 for £60.If he sells all the oranges at the rate of 3 for %50,find his gain orloss percent(to the nearest integer).

The perimeter of a rhombus is 60 cm and one ofits diagonal is 24cm. The area (in sq.cm) of therhombus is

A sum of money is paid back in two annual instalments of %17,640 each, allowing 5% compound interest compounded annually. The sum borrowed was