ताजे फल में 68% पानी होता है और सूखे फल में 20% पानी होता है। तो 75 किलोग्राम ताजे फलों से कितने किलोग्राम सूखे फल प्राप्त किए जा सकते हैं?

A person saves 90% of his income. If his expenditure is ₹520, find his income (in ₹).

By how much is 30% of 60 greater than 25% of 40?

By how much is 30% of 50 greater than 35% of 30?