Range of first twenty positive integers is 

Mean of 89 observations is found to be 32. At the time of computation two item were wrongly taken as 29 and 37 instead of 38 and 28. Find the correct mean.

What is the median of the data 526,265,726,672,625,248,482,252,276,267,284,256

Kumar's monthly salary is Rs. 54,000. He spends 1/6th of his salary as rent, 1/3rd as education, 1/4th as transport and the remaining as his savings. The amount saved by him as 

The sum of two rational numbers 1/3  and 1/4 is x times the difference between two numbers 1/3  and 1/4 what is the value of x

Abirami bought a suitcase for INR 2730 which including 5% of VAT (Value added Tax). What was the price of the suitcase before VAT was added