Basic Numeracy/Quantitative Aptitude

Detailed Solution

140.

141.

142. d: You can try out the relationships using at least two pairs from the table to see whether the relationship holds. But it is relatively easy to spot that the first number squared + 1 gives the second number in each case.

143. c: Let the weight of the empty tin = w (2 - w) = weight of the cookies; and one quarter of the cookies weigh (2 - w)/4
One quarter of the cookies + tin = 0.8 = w + (2 - w)/4
Multiply through by 4; 3.2 = 4w + 2 - w
1.2 = 3w; w = 0.4

144. b: This question is testing that you know that the angle between a tangent to a circle and a chord (angle c is such an angle) is equal to the angle in the opposite segment (angle d is in the segment opposite to c in this case). Similarly, angle a is equal to angle e for the same reason.

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