maths answer key of cgl tier II exam held on 1 august 2010

Answer Posted / hemant mittal

HELLO HITESH ,
LETS CLEAR UR DOUBTS

Q33 IN TRIANGLE SUM OF THREE ANGLES = 180 SO ALL THREE
HORSES WILL GRAZE = 1/2 OF AREA OF CIRCLE HAVING RADIUS 7 .

Q37 WHEN A SPHERE IS CUT IN 4 EQUAL PIECES OUTER SURFACE
AREA WILL REMAIN 4 PIE R2 OF ALL PIECES BUT EVERY PIECE
WILL HAVE 2 EDGES IF YOU UNFOLD THE EDGES THAT WILL MAKE A
CIRCLE OF SAME RADIUS SO 4 PARTS = 4 PIE R2 AREA AS INNER
AREA SO ANSWER IS 8 .

Q29 ASSUME L=6 B=5 AS GIVEN SO AREA =30 NOW L=7 B= 4 NEW
AREA =28 RATIO 15:14

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