Shiva’s monthly salary is Rs.75,000. He spends Rs.12,000 on household items, Rs.14,000 on LIC and mutual funds, Rs.15,000 on his children’s education, and keeps Rs.10,000 for miscellaneous expenses. His savings are Rs.21,000 per month and he donates the rest of the amount to an orphanage. The percentage of his income that he donates is:

Kiran spends 75% of his income. If he saves ₹90000, then his income (in ₹) is:

A person spends 50% of his monthly salary on house rent. If he spends ₹912 on transport and ₹3,799 on groceries every month and saves the remaining ₹131, then find his monthly salary (in ₹).

The income of Ajay is ₹45000. He saves 18% of the income. Vijay's expenditure is 20% more than Ajay's expenditure and his savings is ₹3420. Vijay's income is what percent more than the income of Ajay?

The expenditure of Sudha is 125% more than her savings. If expenditure decreases by 14% and savings increase by 38%, find % increase in income.

The price (per litre) of petrol increases by 40%. By what percent should its consumption be reduced such that the expenditure on it increases by 12% only?

The income of Avin is 54,000 which is 20% less than that of Bharat. The expenditure of Bharat is 12% more than the income of Avin and the expenditure of Avin is 25% less than the expenditure of Bharat. The difference between the savings of Avin and Bharat is:

Petrol price increases by 75%. By what percent should consumption be reduced so that expenditure increases only by 26%?

The price (per litre) of petrol increases by 50%. By what percent should its consumption be reduced such that the expenditure on it increases by 32% only?

If 20% of a number is 50, then what is that number?

The price (per litre) of petrol increases by 80%. By what percent should its consumption be reduced such that the expenditure on it increases by 17% only?