Last year the cost of 1000 articles was ₹ 5000. This year it goes down to ₹4000. What is the percentage of decrease in price ?

Last year the cost of a commodity was ₹50. This year, the cost of the commodity increased to ₹60. What is the percentage change in its price?

Last year the cost of a commodity was ₹40. This year, the cost of the commodity increased to ₹50. The percentage of change in its price is_____________

Last year the price of a commodity was₹ 80, this year the price goes up by ₹20 find percentage increase.

A school team won 6 games this year against 4 games won last year. What is the percent increase?

Half-life of ""^(210)Pb is 22 years. 2gram of lead is allowed decay for 11 years. (a) How much lead is left ?and (b) What is the percentage decay ?

The CI on ₹5000 at the rate of 8% for 2 years is________

The cost of an article goes down every year by 20% of its pervious value. Find its original cost if the cost of it after 2 years is ₹19,200.

There were 2075 members enrolled in the club during last year. This year enrolment is decreased by 4%. Find the decrease in enrolment.