CBSE - Aptitude Mathematics

If the product of 3 consecutive integers is 210, then the sum of the two smaller integers is 1. 5 2. 11 3. 12 4. 13

A greatest number of 5 digits, which when divided by 7,10,15,21 and 28 leaves 5,8,13,19 and 26 respectively as remainders, is 1. 99858 2. 99958 3. 98958 4. 99985

36 identical chairs must be arranged in rows with the same number of chairs in each row. Each row must contain at least three chairs and there must be at least three rows. A row is parallel to the front of the room. How many different arrangements are possible? 1. 2 2. 4 3. 5 4. 6

The circle drawn on any focal chord of a parabola as diameter touches: 1. the axes 2. the directrix 3. the tangent at the vertex 4. the latus ractum

The standard deviation from the following data is x : 2 4 5 6 10 f : 1 3 7 5 4 1. 2.74 2. 2.23 3. 3.42 4. 2.35