Cost of two articles were in the ratio of 16: 23. The cost of first article increases by 10% and that of second by Rs.477. Now the costs of two articles are in the ratio of 11: 20. The price of the second article (in Rs.) in the beginning was-

In an exhibition entrance charge was Rs.5 and now it is reduced by 20%. Therefore total income on selling the tickets is increased by 44%, then what is the percent increase in tickets sold?

If a number multiplied by 25 % of itself gives a number which is 200% more than the number, then 25% of the number is -

Two students appeared for an examination. One student who scored 20 marks more than the other, his score was 60 % of the sum of their marks. What was his score?

75% of a number is equal to three-seventh of another number. What is the ratio between the first number and the second number respectively?

The price of tea increase by 32 % and so a housewife’s expenditure on tea also increases by 10%. If she bought 10 kg earlier, what is the quantity bought now?

The price of sugar is increased by 20%. As a result, a family has to decrease its consumption by 20%. The expenditure of the family on sugar is decreased by

A student multiplies a number by 5/3 instead of 3/5. What is the percentage error in the calculation?