5. If Chameli had ₹ 600 left after spending 75% of her money, how much did she have in the beginning?

Let the money with Chameli be ₹ 100

So, the money spent by her = 75% of 100

\(\qquad = \frac { 75 }{ 100 } \times 100 = ₹ 75\)

The money left with her = ₹ 100 – ₹75 = ₹ 25

₹ 25 are left with her out of ₹ 100

₹ 1 is left with her out of ₹ \(\frac { 100 }{ 25 }\)

Similarly, ₹ 600 will be left out of ₹ \(\frac { 100 }{ 25 } \times 600 = ₹ 2400\)

Thus, she had ₹ 2400 in beginning.