5 better ways to say "Good Job" in English (Part two)#shorts

In how many ways can 10 books on English and 8 books on physics be placed in a row on a shelf so that two books on physics may not be together?

Find out the error part of the following sentences: He obtained good marks (1)/not only in English essay (2)/but also in Arithmetic which was (3)/full of complicated calculations. (4)/No error (5)

In how many ways can 21 identical English and 19 identical Hindi books be placed in a row so that no two Hindi books are together?

DIRECTIONS: in the following question, a part of sentence is bold. Below are given alternatives to the bold part which may improve the sentence. Choose the correct alternative. In case no improvement is required, choose “No Improvement” option. He has a good command over both English and French is known to all.

I look for a better job for the last two months, but nothing is in sight.

Look at the underlined part of each sentence. Below each sentence are given three possible substitutions for the underlined part. If one of them is better than the underlined part, mark accordingly on the Answer Sheet. If none of the substitutions improve the sentence, mark (d) on your Answer Sheet. Any English are known for their practical instincts.