Which one of the following does not belong to the group?

You purchased two pieces of cloth measring 1.2 m and 1.3 m each at Rs. 330 and Rs. 270 per meter respectively and gave Rs. 1000 at the payment counter. How much cash will you get back?

A person with blood group AB

Find the range of the data 2, 1, 2, 3, 5, 4, 7, 3, 5, 2, 4.

Find the smallest of the following decimals.

When did Bangladesh become an independent parliamentary democracy?

If X + 2Y = 27 and X - 2Y = -1, find the value of Y.

X can finish 25% of a work in a day. Y can do 12.5% of the same work in a day. In how many days, will both of them finish the work together?