Others Maths Puzzle

three identical circles of radius 10cm each touch each other, a fourth circle is placed in between these three circles in such a way that it touches all the three circles, Find the radius of this smallest circle...

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Others Other Question

In a family of six members, A, B, C, D, E and F, following conditions
apply.
(i) B, F, D are females.
(ii) A (who is married) has 3 children with one son married.
(iii) F is D’s sister-in-law and A’s daughter-in-law.
(iv) E is the unmarried son of A.
How is F related to A?

1) Daughter 2) Daughter-in-law 3) Son 4) Grand-Daughter
In the following question statement 1 is the first sentence of the paragraph . Statements a,b,c,d,e when properly sequenced form a coherent paragraph along with the first sentence. Choose the most logical order of sequence that constructs a coherent passage.

1.It was doubtless a very old custom of Middle Ages to display the insane.

(a) Thus they constituted a spectacle at the city gates.

(b)As late as 1815,if a report presented in the House of Commons is to be believed, the hospital of Bethlehem exhibited lunatics for a penny, every Sunday.

(c)The strange fact is that this custom did not disappear once the doors of the asylum closed, but on the contrary it then developed almost an institutional character.

(d)In Germany, barred windows had been installed which permitted those outside to observe madmen chained within.

(e)The annual revenue from these exhibitions amounted to almost four hundred pounds.
1) dacbe
2) cbeda
3) becad
4) dcaeb