During the break, a school canteen contractor sells "n" cups of vanilla ice cream. What may 2n represent What may n/3 represent?
Please tell the right solution
Answers
Answer:
Meena’s position is at step s
Beena’s position is at (s + 8)th step
Leena’s position is at (s – 7)th step
Difference between the steps of Beena and Leena = (s + 8) – (s – 7) = 15 steps
The total number of steps to the hilltop = 4s – 10
Example 18: During break, a school canteen contractor sells n cups of vanilla ice cream. What
may 2n represent? What may n represent?
3
Solution: 2n represents twice the number of students who like vanilla ice cream. n represents
3
one-third of the students who like vanilla ice cream. (Note: Answer may vary)
Example 19: Given Vani’s age to be x years, can you guess what (x + 3) may show? Can you
guess what (x – 5) may show? What is represented by 2x + 4?
Solution: Vani’s present age = x years
Thus (x + 3) shows her age after three years.
Thus (x – 5) shows her age 5 years ago.
Thus (2x + 4) shows the age of a person who is 4 years more than twice of Vani’s
age.
Example 20: Answer the following:
If Nikhil’s present age is x years, then determine:
(i) Nikhil’s age 3 years back.
(ii) Nikhil’s grandfather’s age who is five times Nikhil’s age.
(iii) Nikhil’s grandmother’s age who is 8 years younger to his grandfather.
(iv) Nikhil’s father’s age, who is 5 years more than 3 times Nikhil’s age.
Answer:
During the break, a school canteen contractor sells "n" cups of vanilla ice cream. What may 2n represent What may n/3 represent?
Please tell the right solution