Quantitative Aptitude - Arithmetic Ability Questions

X and Y are two alloys which are prepared by mixing zinc and aluminium in the ratio of 1 : 4 and 11 : 8 respectively. If equal quantities of alloys are melted to form a third alloy Z then what is the ratio of zinc and aluminium in alloy Z?

N professes to lose 25% on rice and uses a weight of 750 gm instead of 1 kg. What is the total profit or loss percentage?

Present ages of Sai and Satheesh are in the ratio of 5:4 respectively. Three years hence, the ratio of their ages will become 11:9 respectively. What is Satheesh's present age in years?

Find 2 consecutive natural numbers, sum of whose squares is 25.

Select the odd word/letters/number/number pair from the given alternatives.

If 1+121+141+161+181-131-151-17 = 1+ 1x, then what is the value of x?

The average temperature for Monday, Tuesday, Wednesday and Thursday was 48° . The average temperature for Tuesday, Wednesday, Thursday and Friday was 52°, If the temperature on Monday was 42°, then the temperature on Friday was (in degrees)

The corners of a square of side ‘a’ are cut away so as to form a regular octagon. What is the side of the octagon?