Due to an increase of 40% in the price of an egg, 7 eggs less are available for  9.80, what is the increased price of 25 eggs?
a)	28	b)	Rs.25	c)	Rs.21	d)	Rs.14

Let the original cost of one egg be  Amount for eggs= 9.80

Increased price of one egg=  Now, difference in the number of eggs bought due to the increase in price=7 ⇒Number of eggs bought in original price-Number of eggs bought increased price=7 ⇒

So, original cost of an egg=40 paise. ∴ Increased cost of 1 egg=0.40×

∴ Increased cost of 25 eggs=