For the following questions answer them individually
The income of a company increase 20% per annum. If its income ₹26,64,000 in the year 2012, then its income in the year 2010 was:
The distance between centers of two circles of radii 3 cm and 8 cm is 13 cm. If the points of contact of a direct common tangent to the circles are P and Q, the length of the line segment PQ is:
A shopkeeper marks his goods 20% higher than the cost price and allows a discount of 5%. The percentage of his profit is.
By selling an article for ₹450. I lose 20%. For what amount should I sell il to gain 20% ?
In an exam the sum of the scores of A and B is 120, that of B and C is 130 and that of C and A is 140. Then the score of C is
If $$\alpha + \beta = 90^\circ$$ then the expression $$\frac{\ \tan\ \alpha\ }{\tan\ \beta\ }+\sin^2\alpha\ +\sin^2\beta\ $$ is equal to :
Two circles of radii 5 cm and 3 cm touch extenally, then the ratio in which the direct common tangent to the circles divides extenally the line joining the centers of the circles is:
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