On Monday, the value of a company's shares was 7.50. The price increased by 6% on Tuesday, decreased by 1.5% on Wednesday, and decreased by 2% on Thursday Find the value of each share when trade opened on Friday.

Find the value of 42 if it is increased by 14 frac{2}{7} %.

When pressure increases by 2% , what is the percentage decrease in the volume of a gas, assuming Boyle's law is obeyed ?

A machine costs Rs. 5,00,000. if the value depreciates 15% in the first year, 13 1/2% in the second year, 12% in the third year and so on. What will be its value at the end of 10 years, when all the percentages will be applied to the original cost?

A tuning fork of frequency 392 Hz, resonates with 50 cm length of a string under tension T. If the length of the string is decreased by 2% keeping the tension constant the number of beats heard when the string and the tuning fork are made to vibrate simultaneously is