Proportional Reasoning-1 — Class 8 solved problems

14 problems from this chapter, each solved step by step.

If 3 apples are placed with 6 oranges in an arrangement. How many apples will be placed next to 80 oranges in the same arrangement
40 apples
A shopkeeper buys a book for ₹250 and sells it at a profit of 20%. A customer buys 3 such books. How much does the customer pay in total, in ₹?
The customer pays ₹900 in total.
Find the compound interest on ₹10,000 at 10% per annum for 2 years, compounded annually.
The compound interest is ₹2,100.
हिंदी में जवाब दो: In a bag, red and blue marbles are in the ratio 2: 3. If there are 12 red marbles, how many blue marbles are there and how many marbles are t
नीले कंचों की संख्या 18 है और कुल कंचों की संख्या 30 है।
In a bag, red and blue marbles are in the ratio 2: 3. If there are 12 red marbles, how many blue marbles are there and how many marbles are there in total?
There are 18 blue marbles and a total of 30 marbles.
If 9 workers can build a brick wall in 20 days, how many workers will be required to build the exact same wall in 12 days?
15 workers will be required to build the exact same wall in 12 days.
A car travels 228 km in 3 hours. How far will it travel in 7 hours if it maintains the same speed?
The car will travel 532 km in 7 hours.
Jason works as a salesperson at a car dealership. He needs to sell 15 cars this month to earn a big bonus. He knows based on historical averages, that for every
Jason needs to make 750 telephone calls to sell 15 cars.
The ratio of men to women on a bus is 5:9. If the total number of passengers on the bus is 84, and 20 women alight from the bus at the next stop, how many women
34 women have remained on the bus.
At the end of each year the value of a certain machine has depreciated by 20 % of its value at the beginning of that year. If its initial value was Rs 1250, fin
The value of the machine at the end of 5 years is Rs 409.60.
Steve decides to start eating more tomatoes and decides to grows his own cherry tomatoes. He eats twice as much as his girlfriend. He eats 6 per day. If a vine
Steve needs 21 vines.
Vincent can buy flowers in packages of 3 for 2.50 or in packages of 2 for 1. How much money does he save by buying 18 flowers at the better price?
Vincent saves 6.00 by buying 18 flowers at the better price.
A Tyrannosaurus rex ate half of a small triceratops it had hunted. When it left, a pack of velociraptors scavenged half of what was left. A group of lazy Allosa
The triceratops had 1080 kilograms of meat before the T-Rex ate.
Roy has saved 40% more in money earned by chores than his brother Anthony. Anthony has saved 10.00 more than their sister Eva. Eva has saved 20.00. How much mon
Roy has 42.00.

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