Quantitative Aptitude - Arithmetic Ability Questions

If xy+yz+zx = 1, then the value of (1+y2)(x+y)(y+z) ?

If a+1b=1 and b+1c=1 , then the value of c+1a is

A 8 cm long perpendicular is drawn from the centre of a circle to a 12 cm long chord. The diameter of the circle is

The price of an article is cut by 31%, to restore to its original value, the new price must be increased by

The ratio of the number of marbles that Joyee and Minati had was 5 : 8 while the ratio of the number of marbles that Jacob and Minati had was 7 : 12. What is the ratio of the number of marbles that Joyee and Jacob had?

Find the odd word/letters/number from the given alternatives.

A kite is flying in the sky. The length of string between a point on the ground and kite is 420 m. The angle of elevation of string with the ground is 30 deg. Assuming that there is no slack in the string, then what is the height (in metres) of the kite?

The sum of three numbers is 67. If the ratio of the first number to the second number is 3 : 5 and that of the second number to the third number is 4 : 7, then what is the second number ?