Aptitude Tests 4 Me

Basic Numeracy/Quantitative Aptitude

165. In a certain school, 40% of all students are 8 years old or younger. The number of the remaining students is 120. How many students are 8 years old or younger?

 (a) 80 (b) 160 (c) 480 (d) 320

166. 1/5 of students in a school have no brothers or sisters. Of the remaining students, 40% have 1 brother or sister. What percent of all students have more than 1 brother or sister?

 (a) 60 (b) 80 (c) 48 (d) 20

167. In Rwanda, the chance for rain on any given day is 50%. What is the probability that it rains on 4 out of 7 consecutive days in Rwanda?

 (a) 4/7 (b) 3/7 (c) 35/128 (d) 4/28

168. A Four digit safe code does not contain the digits 1 and 4 at all. What is the probability that it has at least one even digit?

 (a) 1/4 (b) 1/2 (c) 3/4 (d) 15/16

169. Each side of the smaller square in the figure below is x inches long, and each side of the larger square is c inches longer than a side of the smaller square. The area of the larger square is how many square inches greater than the area of the smaller square?

 (a) c2 (b) xc (c) 4c (d) 2xc + c2

TOTAL

Detailed Solution

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