Advertisements
Advertisements
Question
The students of Anju’s class sold posters to raise money. Anju wanted to create a ratio for finding the amount of money her class would make for different numbers of posters sold. She knew they could raise Rs 250 for every 60 posters sold.
- How much money would Anju’s class make for selling 102 posters?
- Could Anju’s class raise exactly Rs 2,000? If so, how many posters would they need to sell? If not, why?
Advertisements
Solution
a. Every 60 posters, Anju’s class students raise = ₹ 250
So, from 1 poster, Anju’s class students raise = `250/60` = ₹ `25/6`
If Anju's sell 102 posters, then they raise
= `25/6 xx 102`
= 17 × 25
= ₹ 425
Hence, Anju’s class make ₹ 425 by selling of 102 posters.
b. Since, by selling 1 poster, Anju’s class raise = ₹ `25/6`
For raise exactly ₹ 2000, they needs to sell
= `2000 + 25/6`
= `2000 xx 6/25`
= 480 posters
APPEARS IN
RELATED QUESTIONS
Fill in the blank in of the following so as to make the statement true:
Two quantities are said to vary......... with each other if they increase (decrease) together in such a way that the ratio of the corresponding values remains same.
A and B can do a piece of work in 12 days; B and C in 15 days; C and A in 20 days. How much time will A alone take to finish the work?
6 men can complete the electric fitting in a building in 7 days. How many days will it take if 21 men do the job?
Both x and y vary directly with each other and when x is 10, y is 14, which of the following is not a possible pair of corresponding values of x and y?
For fixed time period and rate of interest, the simple interest is directly proportional to the principal.
Write whether the following statement vary directly, vary inversely with each other, or neither of the two.
The distance travelled by CNG bus and the amount of CNG used.
The cost of 27 kg of iron is Rs 1,080, what will be the cost of 120 kg of iron of the same quality?
30 persons can reap a field in 17 days. How many more persons should be engaged to reap the same field in 10 days?
Many schools have a recommended students-teacher ratio as 35:1. Next year, school expects an increase in enrolment by 280 students. How many new teachers will they have to appoint to maintain the students-teacher ratio?
Kusum always forgets how to convert miles to kilometres and back again. However she remembers that her car’s speedometer shows both miles and kilometres. She knows that travelling 50 miles per hour is same as travelling 80 kilometres per hour. To cover a distance of 200 km, how many miles Kusum would have to go?
