black water book

There are 19 books on Geography, 16 books on Zoology and 20 books on Math in a bundle of books. Three books are selected one after the other. Find P(book on Zoology, book on Geography, no book on Math). => ..

Amorphous Carbon - Lamp Black - Lamp Black is also known as Soot. Soot is obtained by the incomplete combustion of carbonaceous, fuels, especially oil fuels, in limited supply of air. The soot settles on the cooler parts of the chamber, and can be collected by scrapping it (Fig...

It is prepared by heating white phosphorus to about 470 K under high pressure of 1200 atmospheres in inert atmosphere. (i) It has metallic lustre. (ii) It is most inactive form of phosphorus. (iii) It has a layer type structure in which each layer consists of phosphorus atoms. Some ph..

There are 20 English books and 7 French books in a shelf. In how many ways can one English book and one French book be chosen? => 140 or 7 or 20 or 2..

A bookseller sold books worth $2,000 in a week. The cost of each book is $20. How many books did he sell during the week, if he earned a profit of $200? => 102 or 75 or 90 or 115..

There are 20 crayons out of which 10 are black and 10 are lilac. If two crayons are picked up at random, what is the probability that the first one is black and the other is lilac? => 1 10 or 1 20 or 5 19 or 10 11..

Renny bought 20 books each of which costs $7. The total bill is $120 which includes a discount. What is the discount on each book? => $1 or $3 or $2 or $5..

The bar graph shows the price of books on different subjects in a book store. Find the price range of books in the book store. => 4 or 3 or 5 or 2..

Rachel spends $40 of her money to buy math books, $10 to buy social books, and $20 to buy science books. What percent does she spend on math and social books? => 71.43% or 61.43% or 66.43% or 81.43%..

One of these is Jack's Math book. Use the clues to find his Math book. (1) It is not Book-2. (2) It is not Book-4. (3) It is not Book-3. => Book-3 or Book-2 or Book-4 or Book-1..