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
Rohit bought 12 registers for Rs 156, find the cost of 7 such registers.
The cost of 12 quintals of soyabean is 36,000 rupees. How much will 8 quintals cost?
Ten men take 4 days to complete the task of tarring a road. How many days would 8 men take?
If the weight of 12 sheets of thick paper is 40 grams, how many sheets of the same paper would weigh 2.5 kilograms?
Meenakshee cycles to her school at an average speed of 12 km/h and takes 20 minutes to reach her school. If she wants to reach her school in 12 minutes, her average speed should be ______.
When the speed remains constant, the distance travelled is ______ proportional to the time.
Write whether the following statement vary directly, vary inversely with each other, or neither of the two.
Number of students in a hostel and consumption of food.
Write whether the following statement vary directly, vary inversely with each other, or neither of the two.
Sales Tax and the amount of the bill.
The mass of an aluminum rod varies directly with its length. If a 16 cm long rod has a mass of 192 g, find the length of the rod whose mass is 105 g.
The following table shows the distance travelled by one of the new eco-friendly energy-efficient cars travelled on gas.
| Litres of gas | 1 | 0.5 | 2 | 2.5 | 3 | 5 |
| Distance (km) | 15 | 7.5 | 30 | 37.5 | 45 | 75 |
Which type of properties are indicated by the table? How much distance will be covered by the car in 8 litres of gas?
