SSC CHSL 12th August 2021 Shift-2

If $$(7x - 10y) = 8$$ and $$xy = 5$$, then what is the value of $$49 x^2 + 100 y^2$$?

A and B can complete a piece of work in 27 days and 54 days, respectively. They completed the work in 9 days with the help of C. How many days will C take to complete eight-ninths of the work alone?

A's salary is 15% less than B's salary. B's salary is 30% less than C's salary. By how much percent approximately, is C's salary more than A's salary?

The line graph shows the production (in tonnes) and the sales (in tonnes) of a company.
What is the ratio of the production of the company in 2015 and 2016 taken together to the sales in 2017 and 2019 taken together?

A train, 500 m long, passes a railway platform 400 m long, in one minute with uniform speed. What is the time (in seconds) taken by the train to pass a man riding a motorbike,travelling opposite to the direction of the train, at a speed of 18 km/h?

______ contains and manages all the programs and applications that a computer or other device is able to run.

‘Ugadi’ is the famous festival of which of the following states?

As on 9 December 2020, how many states of India have implemented 'one nation one ration card system'?

In which of the following countries is the headquarters of International Table Tennis Federation situated?

Which of the following fibre is used to make rayon clothes?