If pq(p+q) = 1, then the value of 1p3q3-p3-q3 is equal to
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If x2+1x2 = 2, then the value of x - 1x is
A moving train passes a platform 50m long in 14 seconds and a lamp post in 10 seconds. The speed of the train (in km/h) is :
The price of an article is decreased by 10%. To restore it to its former value, the new price must be increased by
A profit of Rs. 960 is divided between A and B in the ratio 1/3:1/2. The difference of their profit is :
A cloth merchant has announced 25% rebate in prices. If one needs to have a rebate of Rs. 40, then how many metres of cloth costing Rs. 32 per metre he should purchase
The area of a rectangle in 60 sq.cm and its perimeter is 34 cm, then the length of the diagonal is
If the sum of a number and its reciprocal be 2, then the number is
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