Find the missing number:
1050250630150420? |
100
For the first two rows:
50÷10=5 and 250÷50=5
30÷6=5 and 150÷30=5
So, we observe that in a row:
Number in the second column = 5 × Number in the first column
Number in the third column = 5 × Number in the second column
So, 5 × 4 = 20 and 5 × 20 = 100
Hence, the missing number is 100.