Question
Monthly income of P is Rs.15000 and his monthly savings
is Rs.9600. If his monthly income is decreased by 35% and monthly expenditure is decreased by 25% then find the approximate percentage decrease in his monthly savings.Solution
Expenditure of P = Rs. (15000 – 9600) = Rs.5400 New Saving = (0.65 × 15000 - 0.75 × 5400) = 9750 - 4050 = Rs.5700 Decrease % in Saving = [(9600 - 5700)/9600] × 100 = 41%
A sum is lent at 20% pa compound interest. What is the ratio of increase in the amount in the 4th year to that in the 5th year?
An article is marked 50% above its cost price and sold after offering a discount of Rs. 50 such that its selling price is Rs. 120 more compared to its s...
A trader marked an item at Rs. 600 and sold it after giving two successive discounts of 25% and 10%. If he made a profit of Rs. 20, then find the cost p...
A shopkeeper sold a school bag at a profit of 60%. Had he sold the school bag at 20% profit he would have earned Rs.164 less. Find the cost price of the...
A person bought a mobile phone at a 10% discount. If he had bought it at a 20% discount, he would have saved ₹3000 more.
Find the market price ...The cost price of 20 earphones equals the selling price of 16 earphones. The ratio of the cost price of an earphone to a pouch is 3:2. The sum of the se...
- A mobile and a charger cost Rs. 3,000 and Rs. 1,200 respectively. The store marked the mobile up by 30% and the charger by 20%. If the combined selling pri...
A school bag is sold for Rs.540 after giving two successive discounts of 10% and 20%. If school bag is marked up by Rs.500 above its cost price, then fi...
A shopkeeper purchases rice of two varieties ‘A’ and ‘B’ at Rs. 27 per kg and Rs. 24 per kg respectively. He mixes 1 kg of variety ‘A’ rice ...
The ratio of the cost price and marked price of an article is 7:10, respectively. The article is sold after giving a discount of Rs. 400 such that there...
