Advertisements
Advertisements
Question
In a stack, there are 5 books each of thickness 20 mm and 5 paper sheets each of thickness 0.016 mm. What is the total thickness of the stack?
Advertisements
Solution
Thickness of each book = 20 mm
Hence, thickness of 5 books = (5 × 20) mm = 100 mm
Thickness of each paper sheet = 0.016 mm
Hence, thickness of 5 paper sheets = (5 × 0.016) mm = 0.080 mm
Total thickness of the stack = Thickness of 5 books + Thickness of 5 paper sheets
= (100 + 0.080) mm
= 100.08 mm
= 1.0008 × 102 mm
RELATED QUESTIONS
Express the given numbers in standard form.
0.0000000000085
Express the given numbers in usual form.
5.8 × 1012
Write the following numbers in the usual form:
4.83 × 107
Write the following numbers in the usual form:
3 × 10−8
Write the following numbers in the usual form:
3.25 × 10−7
Express the following number in standard form.
0.000035
The standard form for 0.000064 is ______.
The standard form of `(1/100000000)` is ______.
Express the following in standard form:
A Helium atom has a diameter of 0.000000022 cm.
Consider a quantity of a radioactive substance. The fraction of this quantity that remains after t half-lives can be found by using the expression 3–t. After how many half-lives will the fraction be `1/243` of the original?
