Set 24 Quant q# 9

Hi, The following question is from Set 24. The operation* represents either addition, subtraction, or multiplication of integers, what is the value of 1*0? (1) 0*2=2 (2) 2*0=2 It appears to me that the answer is D for this question. From (1), we can figure that the operator is addition, and so we ca...

Hi, From the problem statement, it is clear that each of the smaller triangles are of the same area (all are equilateral triangles and the ratio of the sides etc implies this). Since three of the four triangles are shaded, the shaded area of the bigger triangle is K*3/4. OR (I proceeded the followin...

Hi,
Couldn't we solve this using information in (i) x=30? With this info the small triangle (ABD) becomes a 30-60-90 and we know the length of one of the sides, so we can figure the other two sides. Once, we've this info, we can use the similar triangle method to solve it. So, the answer would be D.

Hi Isis Alaska, From what I remember from the Manhattan SC book, whenever you've an and between two subjects (singular or otherwise), the composite subject should be treated as plural .. the composite one would be the subject, not the one closer to the verb. That's why, I think C would be the correc...

Hi, I'm not sure if the following is the most efficient way to do it. At least for me it was quick to do this way! in solution Y = 30% x + 70% w(ater) So, in 8kg of Y = 2.4x + 5.6w from this 2kg water is removed (Evaporated) so, in the remaining 6kg Y = 2.4x + 3.6w. Now 2kg Y is added, which has 0.6...

The question is asking for the net income before taxes. The taxes are levied on income after the first 3000. Assume income before taxes is x. The total net income after taxes: (x-3000) * 0.9 + 3000 = 12000 (x-3000) * 0.9 = 9000 x = 9000/0.9 + 3000 x = 13000 0.9 above is the income left after taxes o...