Questions

A machine depreciates in value each year at the rate of 10% of its previous value. However, every second year there is some maintenance work so that in that particular year, depreciation is only 5% of its previous value. If at the end of the fourth year, the value of the machine stands at Rs 1,46,205, then find the value of machine at the start of the first year.

Which statement is true of the 1950s?

In the following question, out of the four alternatives, select the alternative which is the best substitute of the words/sentence.

Free from disturbance

A sentence/a part of the sentence is underlined. Four alternatives are given to the underlined part which will improve the sentence. Choose the correct alternative and click the button corresponding to it. In case no improvement is needed, click the button corresponding to "No improvement".

I did not give at the examination as my circumstances are bad.

Supercooling is cooling of liquid _____.

One who eats everything

Which of the following is not true about X­rays?

∆ABC is right angled at B. BD is an altitude. AD = 4 cm and DC = 9 cm. What is the value of BD (in cm)?