Question : (0.1 × 0.01 × 0.001 × 107) is equal to:
Option 1: 100
Option 2: 10–1
Option 3: 10–2
Option 4: 10
Correct Answer: 10
Solution :
Given: (0.1 × 0.01 × 0.001 × 10
7
)
= 0.1 × 0.01 × 0.001 × 10
7
= 10
–1
× 10
–2
× 10
–3
× 10
7
= 10
–6
× 10
7
= 10
Hence, the correct answer is 10.