A person saves 60% of his income. If his expenditure is ₹400, then his income (in ₹) is:

Correct option is C

Let income be ₹x. Saving = 60% → Expenditure = 40% of x So, 40% of x = 400 ⇒ (40/100) × x = 400 x = 400 × (100/40) = ₹1000
Explanation of options: (a) ✘ ₹840 would mean 40% = ₹336, not ₹400 (b) ✘ ₹1040 gives expenditure of ₹416 — too high (c) ✔ ₹1000 gives 40% = ₹400 as expenditure — correct (d) ✘ ₹700 implies 40% = ₹280 — less than given amount