Quantitative Aptitude - Arithmetic Ability Questions

If a-1a=7,then a2+1a2=?

25% discount is offered on an item. By applying a promo code the customer wins 4% cash back. What is the effective discount?

Find the square root of 15625.

If the edge of a cube is increased by 3 cm, the volume will increase by 657 cub.cm. What then is the original length of each edge of the cube?

What would be the smaller of the two angles formed by the hour hand and the minute hand at 3:47 p.m?

In the following question, select the odd word from the given alternatives.

The average marks of 18 students in an examination was 60. It was later found that the marks of one student had been wrongly entered as 63 instead of 36. The correct average is:

Akshar remembers that the match is after 26th April but before 30th April, while Suresh remembers that the match is after 22nd April but before 28th April. On which date of April is the match?