Question

6 cm BU 7 cm Himesh has blocks like the one shown above. He wants to build a 40cm high tower with such blocks What is the LEAST number of blocks with which he can do this? d) 10 a) 5 b) 6. c) 8​

Answer 1

Answer:

The least number of blocks with which he can do this were 42 blocks.

Step-by-step explanation:

Least number of blocks = LCM of 6cm and 7cm

Multiples of 6 - 6,12,18,24,30,36,42,48,54,60

Multiples of 7 - 7,14,21,28,35,42,49,56,63,7

Common Multiples - 42

Least Common Multiple - 42

So the least number of blocks with which he can do this were 42 blocks.