The marked price of a table is Rs 625 and its sale price is Rs 500.

What is the ratio of the sale price to the marked price?

Saturn and Jupiter take 9 hours 56 minutes and 10 hours 40minutes, respectively for one spin on their axes. The ratio of the time taken by Saturn and Jupiter in lowest form is ______.

10g of caustic soda dissolved in 100mL of water makes a solution of caustic soda. Amount of caustic soda needed for 1 litre of water to make the same type of solution is ______.

Which pair of ratios are equal? And why?

(i)(ii)

Which ratio is larger 10 : 21 or 21 : 93?