For the following questions answer them individually
If a watch is being sold at Rs 7,225 which is marked at Rs 8,500, then what is the discount (in %) at which the watch is being sold?
On a machine there is 10% trade discount on the marked price of Rs 2,50,000. But the machine is sold at Rs 2,16,000 after giving a cash discount. How much is this cash discount (in %)?
A trader marks up his goods by 120% and offers 30% discount. What will be the selling price (in Rs) if the cost price is Rs 750?
Sanjay's test marks in two subjects, English and Hindi are in the ratio 7 : 11. If he got 20 marks more in Hindi than in English, what are his marks in English?
The ratio of present ages of Simi and Seema is 5 : 4. After 9 years the ratio of their ages will be 8 : 7. What is Simi's present age (in years)?
According to the will the wealth of Rs 21,25,000 was to be divided between the son and the daughter in the ratio $$\frac{7}{6} : \frac{5}{3}$$. How much did the son get (in Rs)?
If Rs 25,000 is to be divided between A, B and C in the ratio $$\frac{1}{10} : \frac{1}{6} : \frac{1}{15}$$, then how much will C get (in Rs)?
Rizwan has a box in which he kept red and blue marbles. The red marbles and blue marbles were in the ratio 5 : 4. After he lost 5 red marbles the ratio became 10 : 9. How many marbles does he have now?