By 35 marks. Find the maximum marks.restore the original salary?© Out of his total monthly income Mr. Moti Lal spends 20% on house rent and 60% of the rest onexpenses. If he saves 2520 per month, what is his total monthly income?Anil obtained 375 marks out of 500 in an examination while Sunil obtained 420 marks out of funperformance is better?10. A school has 1800 students on its roll, 40% of whom are girls. How many boys are there in the11 A number is increased by 10% and then decreased by 10%. Find the net increase or decrease me12. The price of sugar has risen by 20%. By how much per cent must a housewife reduce her consumof sugar, so that the expenditure remains same.13. A's income is 20% more than that of B. How much per cent is the income of B less than that14. An ore contains 18% of copper. How many kg of the ore are required to get 63 kg of copper15. The value of a car decreases annually by 20%. If the present value of the car is 3,45,000,be its value after 2 years?1136 Mathematics-7The price of a book is increased by 12%. If its increased price is 145:60, find the original priThe salary of an employee is increased by 20%. By what percentage should the new salary be​