Subject :Rea Class : Class 5
How many unit squares will there be in pattern 80?
A6460
B6478
C6640
D6804
GOOD BUT A LITTLE BIT TOUGH . BUT IS COMMON TOO I THINK YOU SHOULD GIVE SOME RARE OR HARD WHICH THEY CAN DO .BUT TOO INTERESTING AND HELPFUL .
Ans 1:
Class : Class 5
6640 (c)