Explanation

Step -1: Finding the work done by A and B in a day.

                 Let B takes a total of x days to complete the work alone.

                 So as know that A takes 6 days less than B we can write that A takes

                  x - 6 days to complete the work alone.

                 Work done by B in a day = x1​

                 Work done by A in a day = x−61​

Step -2: Finding x .

                 As we know that A and B together complete the work in 4 days,we can write

                 x1​+x−61​=41​

                 Taking LCM and solving we get,

                 x(x−6)x−6+x​=41​

                 x(x−6)2x−6​=4

Explanation

The 1972 Language violence in Sindh occurred starting on July 7, 1972.

when the Sindh Assembly passed the Sind Teaching, Promotion and Use of Sindhi Language Bill, 1972 which established Sindhi language as the sole official language of the province.

Explanation

Hard but liable to be easily broken : Brittle

Explanation

Bharat Sanchar Nigam Limited is a central public sector undertaking headquartered in New Delhi, India.

Explanation

To open the Selection Pane select the Arrange button on the Home tab of the ribbon and then Selection Pane

Explanation

 M was adopted for 1000, because the Latin word for one thousand is mille.

Explanation

Theodore Maiman made the first laser operate on 16 May 1960 at the Hughes Research Laboratory in California, by shining a high-power flash lamp on a ruby rod with silver-coated surfaces.

Explanation

 Pakistan was among the first countries in the world to institute widespread school closures as a result of Coronavirus 2019

Explanation

مرکب توصیفی کی تعریف: وہ مرکب ناقص جس کا دوسرا جزء پہلے جزء کی صفت(اچھائی ،برائی،مقدار، رنگت وغیرہ)بیان کرے۔ جیسے: رَجُلٌ جَمِیْلٌ ...

Explanation

Mahathir bin Mohamad is a Malaysian politician, author, and physician who served as the 4th and 7th Prime Minister of Malaysia.

He held the office from July 1981 to October 2003 and later from May 2018 to March 2020 for a cumulative total of 24 years, making him the country's longest-serving prime minister.