Quant learner

Hard question on rectangle

Tñ=3Tn-1+(n-1)

ABCD IS A QUADRILATERAL THAT CIRCUMSCRIBE A CIRCLE

ABCD IS A TRAPEZIUM AND E,F ARE THE POINTS ON AD AND BC SUCH THAT AE:ED=1/3,BF:FC=1/3, FIND AB,CD,IF AREA(ABEF):AREA(EFCD)=19:213

REMAINDER FUNCTION PROBLEM FOR CAT 

Proof of  0=1 Can you find out the mistake???? Let us discuss how can we  Prove it

ONE OF THE TOUGHEST TSD QUESTION Man and cork question

HOW TO FIND NO.THAT WAS WRITTEN TWICE

How to find ratio of area of squares

ALLIGATION BASIC APPROACH  Is it helpful???

Proof of  0/0 = 2 (100-100)/(100-100)=2 I am Sharing here its prove ,can you find the mistake in it (100-100)/(100-100) =(10²-10²)/10(10-10) =(10-10)(10+10)/10(10-10) =(10+10)/10 =20/10 =2  Try toFind the mistake in it then I will tell you the mistake in it after sometime