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A girl reads 3/5 of a book. She finds that there are still 80 pages left to be read .how many pages are there in the book?

A man spends 2/5 of his money and had Rs.30 left .how had he initially?

A firm has sales of $1,200, net income of $200, net fixed assets of $500, and current assets of $300. The firm has $100 in inventory. What is the common-size statement value of inventory?

A running man has half the kinetic energy of that of a boy of half of his mass. The man speed up by 1 m/s so as to have same kinetic energy as that of boy . The original speed of man is ?

1/(undr root 2 - 1) m/s

the average age of 30 children in a class is 9 years if the teacher 's age is included, the average age becomes 10 years find the teacher's age

the average age of 5 children is 8 years. if the age of the father is included , the average increased by 7 years. find the age of the father.

the following data relate to size of shoes sold at a store during the given week find the average size by the short cut method size of shoes. 4,5,6,7,8,9,10 no of shoes 15,30,45,60,55,40,5

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p=f/A

Tan37.50

Sovel the tan37.50

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