In 2024, a company's revenue was ₹1 crore. In 2025, it increased by 35%. What is the 2025 revenue?
Answer: B
2025 revenue = 1 crore × 1.35 = 1.35 crore.
Q.385Medium
A vendor buys mangoes at ₹15 each and sells at ₹20 each. If he sells 100 mangoes, what is his total profit?
Answer: B
Profit per mango = 5. Total profit = 5 × 100 = 500.
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Q.386Medium
A discount of 40% on an article equals ₹480. What is the marked price?
Answer: C
40% of MP = 480. MP = 0480.4 = 1200.
Q.387Medium
A reduction of 15% in the price of sugar enables a customer to buy 3 kg more for ₹510. What was the original price of sugar per kg?
Answer: A
This problem uses the relationship between price reduction, quantity purchased, and total expenditure. We'll set up an equation comparing purchases before and after the price change.
Step 1: Define variables
Let the original price of sugar be P per kg.
After a 15% reduction, the new price is:
Pnew=P−0.15P=0.85P
Step 2: Set up the quantity equation
With ₹510, the customer can buy:
•Original: P510 kg
•After reduction: 0.85P510 kg
The difference is 3 kg:
0.85P510−P510=3
Step 3: Simplify the equation
Factor out 510:
510(0.85P1−P1)=3
510(0.85P⋅PP−0.85P)=3
510⋅0.85P20.15P=3
0.85P510×0.15=3
Step 4: Solve for P
0.85P76.5=3
76.5=2.55P
P=2.5576.5=30
Verification: At ₹30/kg: buys 30510=17 kg. At ₹25.50/kg: buys 25.50510=20 kg. Difference = 3 kg. ✓
Answer: The original price was ₹30 per kg (Option A)
Q.388Medium
A product's price increased by 20% and then decreased by 10%. What is the net percentage change?
A man's income increases by 12% while his expenditure increases by 8%. If his savings increase by 20%, what was his original savings percentage?
Answer: B
Let income = 100, savings = s, expenditure = 100-s. New income = 112, new savings = 1.2s, new expenditure = 1.08(100-s). 112 = 1.2s + 1.08(100-s). Solving: s = 20
Q.390Medium
A shopkeeper marks goods at 60% above cost price and gives a discount of 25%. What is his profit percentage?
A town's population was 5,00,000 in 2022. It decreased by 8% in 2023 and then increased by 10% in 2024. What is the population in 2024?
Answer: C
Population in 2023 = 5,00,000 × 0.92 = 4,60,000. Population in 2024 = 4,60,000 × 1.10 = 5,06,000
Q.392Medium
If the ratio of profit to cost price is 3:5, what is the profit percentage?
Answer: B
Profit:CP = 3:5. So if CP = 5, Profit = 3. Profit% = (53) × 100 = 60%
Q.393Medium
A book's price is reduced by 18% in a sale. If the sale price is ₹410, what was the original price?
Answer: B
If original price = x, then 0.82x = 410. x = 0410.82 = ₹500
Q.394Medium
A vendor marks an item at ₹800. He gives successive discounts of 10% and 5%. What is the final selling price?
Answer: A
After 10% discount: 800 × 0.90 = ₹720. After 5% discount: 720 × 0.95 = ₹684
Q.395Medium
A shopkeeper buys goods at ₹600 per unit. He marks them 40% above cost price. If he gives a 15% discount on marked price, what is his profit percentage?
If A's income is 20% more than B's, and B's income is 10% more than C's, then A's income is what percentage more than C's?
Answer: B
Let C = 100, B = 110, A = 110 × 1.20 = 132. A is 32% more than C
Q.397Medium
A worker completes 30% of a job in 6 days. At the same rate, how many more days are needed to complete 80% of the job?
Answer: A
To find how many additional days are needed, we use the relationship between work completed and time, where work rate remains constant.
Step 1: Find the daily work rate
If 30% of the job is completed in 6 days, the daily rate is:
Daily rate=6 days30%=5% per day
Step 2: Calculate total days needed for 80% of the job
At a constant rate of 5% per day, the time to complete 80% is:
Days for 80%=5% per day80%=16 days
Step 3: Find additional days needed
The worker has already spent 6 days on the first 30%. Additional days required:
More days=16−6=10 days
Answer: The worker needs 10 more days to complete 80% of the job (Option A)
Q.398Medium
Two pipes A and B fill a tank in 12 and 15 minutes respectively. If both work together and B is closed after 3 minutes, in how many more minutes will the tank be filled?
Answer: B
A's rate = 121, B's rate = 151. Combined = 121 + 151 = 609 = 203. In 3 min = 3 × 203 = 209 filled. Remaining = 2011. Only A works = (2011)/(121) = (2011) × 12 = 6.6 ≈ 5 minutes (approx)
Q.399Medium
In a mixture of 60 liters, the ratio of milk to water is 3:2. How much water should be added to make the ratio 1:1?
Answer: B
Milk = (53) × 60 = 36L, Water = 24L. For 1:1 ratio, milk = water, so need 36L water. Water to add = 36 - 24 = 12L
Q.400Medium
A retailer marks up products by 50% above cost price. During a sale, he offers 30% discount on marked price. What is his profit/loss percentage?
