Given that, 24 carat gold is pure gold, 18 carat gold is 3/4th of pure gold and 20 carat gold is 5/6th of pure gold, the ratio of the pure gold in 18 carat gold to the pure gold in 20 carat gold is -

On reducing the entry fee by 35% in a park, the number of people coming to the park increased by 40% , then th...

Three number are added in pairs , the sums so obtained are 20,27 and 23. What are those three numbers?

After distributing the chocolates equally among 25 kids, 8 chocolates remain . Had the number of children been...

If radius of a circle is increased by 30% then its area is increased by -

An amount of TK. 10,000 becomes TK. 20,736 in 2 years. If the rate of interest is compounded half yearly , wha...

The difference between two positive number is 3 and the sum of their squares is 369. Then the sum of the numbe...