5M
SECTION - II
II. CASE STUDY BASED QUESTIONS ARE COMPULSORY.
21. The given diagram represent, the positions of land used for different purposes:
Answer the following questions:
i. Which portion get the least
space?
ii. Which portion get the
maximum space?
iii. How much land of market is less than the land used for agriculture?
iv. How much land of playing ground is more than the land used for market?
v. Write the equivalent fraction of agriculture land with denominator 24.
Answers
Answer:
TO RATIONALIZE THE DOMINATOR THIS MEANS THAT WE NEED TO MAKE A RATIONAL NUMBR IN THE
DENOMINATOR .
SOLUTION -
WE NEED TO RATIONALIZE DENOMINATOR OF
√75/√18
FOR THIS FIRST WE NEED TO CONVERT THIS NUMBERS
INTO SIMPLER FORM
THAT IS
√75 = 5√3
AND √18 = 3√2
NOW PUTTING THIS VALUE INSTEAD OF √75 AND √18
WE HAVE
5√3 / 3√2
NOW WE NEED TO RATIONALIZE THE DENOMINATOR
FOR THIS WE CAN MULTIPLY
5√3 / 3√2 BY 3√2 / 3√2
THAT IS EQUAL TO
5√3 × 3√2 / (3 √2)^2
THAT IS EQUAL TO
15√6 / 18
HENCE THE REQUIRED RATIONALIZED FORM IS
15√6 / 18
Step-by-step explanation:
iii.40 percent
Food production takes up almost half of the planet's land surface and threatens to consume the fertile land that still remains, scientists warn. The global impact of farming on the environment is revealed in new maps, which show that 40 percent of the Earth's land is now given over to agriculture.