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Sradha Ratheesh from MGM central Public School, Trivandrum

Subject :IMO Class : Class 6

Find the least number of unit cubes to be added to the solid to form complete a cuboid.

A 21
B 20
C 22
D 18

Ans 1:

ABHIRAM from chirec, HYDERABAD

Class : Class 10

b-20 as volume - number of cubes there now the volume is 4*3*3=36 there are 16cubes so 36-16=20

Vidula Malkar from DPYA High school, Mumbai

Class : Class 7

Veda Dua from Delhi Public School, R. K. Puram, New Delhi

Class : Class 10