Quantitative Aptitude - Arithmetic Ability Questions

If in a two digit number, the digit at unit place is z and the digit at tens place is 8, then the number is

A student multiplied a number by 6/13 instead of 13/6. What is the percentage error in the calculation?

The area of a square is 100 sq cm, find length of its diagonal?

A person driving at the speed of 45 kmph reaches office 1 minute early while she reaches 3 minutes late if driving 40 kmoh. What is the distance (in Km) that she is covering?

P started a business by the investing Rs 35000 and Q joined him after one year with an amount of Rs 21000. After two years from the starting of the business, they earned profit of Rs 26000. What will be the P’s share (in Rs) in the profit?

Rearrange the jumbled up letters to form a meaningful word and find the odd one out.

The area of a regular hexagon is equal to the area of the square. What is the ratio of the perimeter of the regular hexagon to the perimeter of square?

Choose the odd one out from among the given figures.