Quantitative Aptitude - Arithmetic Ability Questions

In triangle DEF measure of angle E is 90 deg. If cotD = 5/12 and DE = 1 cm, then what is the length (in cm) of side EF?

In a triangle, one of the angles is three times the smallest and another is two times the smallest angle. Calculate the smallest angle.

1.1 + 12.12 + 123.123 = ?

Which of the following is the least of all?

The angle of depression of the foot of a building from the top of a tower 30 m away is 30 deg. How high is the tower?

In the following question, four groups of three numbers are given. In each group the second and third number are related to the first number by a Logic/Rule/Relation. Three are similar on basis of same Logic/Rule/Relation. Select the odd one out from the given alternatives.

Which pair is not similar to the other three?

A shop keeper purchased 10 kg of rice and 20 kg of sugar at Rs. 75 and Rs. 85 per kg respectively. On selling, he gained 20% on rice and 10% on sugar. What was the total sale price?