Inside a square plot, a circular garden is developed which exactly fits in the square plot and the diameter of the garden is equal to the side of the square plot which is 28 metres. What is the area of the space left out in the square plot after developing the garden?

The product of one-third of a number and 150% of another number is what percent of the product of the original numbers? 

It the length of a rectangular field is increased by 20% and the breadth is reduced by 20%, the area of the rectangle will be

192 m². What is the area of the original rectangle?

Mr X invested a certain amount in Debt and Equity Funds in the ratio of 4 : 5. At the end of one year. he earned a total dividend of 3094 on his investment. After one year, he reinvested the amount including the dividend in the ratio of 6 : 7 in Debt and Equity Funds. If the amount reinvested in Equity Funds was Rs 94,500, what was the original amount invested in Equity Funds?

A number series is given. In each series, only one number is wrong. Find out the wrong number.

7 13 25 49 97 194 385 

A number series is given. In each series, only one number is wrong. Find out the wrong number.

 32 16 24 65 210 945 5197.5