Quantitative Aptitude - Arithmetic Ability Questions

What is the distance between the points (11,-5) and (-1,0)?

Present age of Amit is twice of Baman’s present age. After 5 years Baman’s age will be 4 times of the Chetan’s present age. If Chetan celebrated his sixth birthday 7 years ago, then what will be the present age (in years) of Amit?

The average height of 50 bats is 126 cm. Some bats of average height 120 cm are removed. If the new average height is 130 cm, then how many bats are remaining?

Two students appeared for an examination. One of them secured 22 marks more than the other and his marks were 55% of the sum of their marks. The marks obtained by them are _______.

2 ­- (cosA + sinA)2 is equal to

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

Triangle DEF is right angled at E. If cot D = 5/12, then what is the value of sin F?

If [√(a2 + b2 + ab)] + [√(a2 + b2 – ab)] = 1, then what is the value of (1 – a2 )(1 – b2 )?