The number 84 cannot be divided in which following ratio?

05:07
05:02
07:05
08:03

The correct answer is (d). 84 cannot be divided in the ratio 8:3.

To divide a number in a given ratio, we need to find the HCF of the two numbers. The HCF of 84 and 3 is 2. So, 84 can be divided in the ratio 2:1, 4:1, 6:1, 12:1, 24:1, 42:1, and 84:1. However, it cannot be divided in the ratio 8:3.