What is the average of all numbers between 11 and 80 which are divisible by 6?

multiples of 6 up-to 12 540/12 = 45

At 10% discount the selling price of an article is Rs 4500, what is the selling price (in Rs) if the discount is 27.5%?

If the discount is 10%, the actual price paid is 90% of marked price. Hence, 0.9*x=4500. => x =5000SP if discount is 27.5% = (72.5/100)*5000=3625.

Partc As there is no bus depot here.