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The chord of the contact of tangents drawn from point on the circle x^2 + y^2 = a^2x2+y2=a2 to the circle x^2 + y^2 = b^2x2+y2=b2 touches the circle x^2 + y^2 = c^2x2+y2=c2 such that b^p = a^m c^nbp=amcn where m, n, p \in Nm,n,p∈N, and m, n, p are prime to each other, then the value of 2m + n + 2p - 3 is:

The average age of fifteen persons is 32 years. If two more persons are added, then the average is increased by 3 years. The new persons have age difference of 7 years. The age (in years) of the younger among the new persons is:

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hi I have just enrolled myself for SSC cgl course by paying 249 where can I attend the papers it's not showing in my app please guide.

if a+b+c=5 , a^2+b^2+c^2=27 ,& a^3+b^3+c^3=125 , then the value of 4abc is

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