Subject :IMO Class : Class 8
How many bricks will be needed to construct a wall 4 m long, 3 m high and 13 cm broad, if each brick measures 20 cm × 12 cm × 6.5 cm?
A 500
B 1000
C 1500
D 2000
Ans 1:
Class : Class 7
Ans 2:
Class : Class 8
solution is showing answer as 1000, but 1000 is marked wrong