A money-lender borrows money at 4% per annum and pays the interest at the end of the year. He lends it at 6% per annum compound interest compounded half yearly and receives the interest at the end of the year. In this way; he ghins Rs. 104.50 a year. The amount of money he borrows, is:

Two trains of lengths 100 m and 140 m respectively are running in opposite directions on parallel tracks. If their speed is 29 km/hour and 43 km/hour respectively. In what time will they cross each other?

A square and an equilateral triangle are drawn on the same base. the ratio of their area is

Remi earns a profit of 20% on selling an article at a certain price. If she sells the articles for ₹8 more, she will gain 30%. What is the original cost price of 16 such articles?

if $${x\over 9}+{8\over x}=1$$, then the value of x³ is :

24% of 680 + 16 % of 525 – 22% of 450 =?

Any six-digit number that is formed by repeating a three-digit number, is always divisible by:

'The total surface area of a cube is 600 sq cm, what will be the length of its diagonal?