Question
A man wants to invest Rs. 60660 in bank accounts of his
two sons whose ages are 12 years and 16 years in such a way that they will get equal amount at an age of 120 years @Â Â per annum compounded annually. Find the share of elder son?Solution
A = {P(1+ r/100)}n , 33(1/3)% = 1/3 Let the Principal for younger son be x And the Principal for elder son be y Now, Interest to be calculated for Younger son = (120-12) = 108 years Elder son = (120-16) = 104 years Since Amount will be equally distributed then, {x(1+ 1/3)}108= {y(1+1/3)}104 x {(4/3)}(108 ) = y{(4/3)}104   y/x = {(4/3)}(108-104 ) y/x = 256/81 Elder son’s share = 256/337 × 60660 = 46080
- If the total cost of 4 chairs and 7 tables is Rs. 410 and the total cost of 3 chairs and 5 tables is Rs. 300, then find the cost of 6 chairs.
A trader buys 75 shirts and recovers the cost price after selling 50 of them. He sells the remaining 25 shirts at a profit of 40% and earns Rs. 600 as p...
A shopkeeper marks up the price of an article by 40% on its cost price. He then offers a discount of 10% on the marked price. If the shopkeeper still ma...
- A seller bought 25 kg of apples at Rs. 40 per kg. He sold some at a profit of 15% and the rest at a profit of 25%. If he earned a total profit of Rs. 175, ...
A cupboard is sold at 20% profit after giving a discount of 25% on the marked price. If the marked price of the cupboard is Rs. 3,600, find its cost price.
The ratio of the cost price and marked price of an article is 4:7, respectively. The article is sold after giving a discount of Rs. 800 such that there ...
A person bought some mangoes at the rate of 7 per rupee. He bought the same number of mangoes at the rate of 6 per rupee. He mixes both types and sells ...
A shopkeeper purchases rice of two varieties ‘A’ and ‘B’ at Rs. 21 per kg and Rs. 27 per kg respectively. He mixes 1 kg of variety ‘A’ rice ...
A vendor sells two varieties of items, I and J. On item I, which costs Rs. 2200, he makes a 12% profit. If the aggregate profit from selling both items ...
- Profit percentage received on a product when sold for Rs.540 is equal to the percentage loss incurred when the same product is sold for Rs.360. Find the se...
Relevant for Exams:
