Question

Rohit gives 5% of his income on insurance and 2.5% of the rest as tax. Now he is left with 420 more than 90 percent of his income. How much is his income?​

Answer 1

Answer:

Rohit gives 5% of his income on insurance,

2.5% of the rest as tax.

so, 5% - 2.5% = 2.5%

90 × 2.5x / 100 = 420

90 × 25x / 100 × 10 = 420

90 × 25x / 1000 = 420

90 × 25x = 420 × 1000

2250x = 420000

x = 420000/2250

X = 186 Approx. Ans.