21. The Curies' _________ collaboration helped to unlock the secrets of the atom.
Answer: friendly
Explanation:"Amicable" means friendly. It does not mean competitive (B), i.e. oppositional, ambitious, or aggressive; courteous (C), i.e. polite; industrious (D), i.e. hard-working; or chemistry (E): their collaboration was in physics, but moreover, the passage specifically describes their collaboration as "amicable."
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22. Marie had a bright mind and a ______ personality.
Answer: lighthearted
Explanation:"Blithe" means light-hearted. It does not mean strong (A), humorous (B) or funny; strange (D), or envious (E).
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23. When she learned that she could not attend the university in Warsaw, she felt _________.
Answer: annoyed
Explanation:"Disgruntled" means annoyed. It does not mean hopeless (A), depressed (C), or worried (D).
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24. Marie _________ by leaving Poland and traveling to France to enter the Sorbonne.
Answer: challenged authority
Explanation:Marie challenged authority by going to study at the Sorbonne, because Warsaw's university did not admit women. The passage indicates this challenge by describing her "defiantly" leaving Poland for France; i.e., she was defying authority. The passage does not indicate she showed intelligence (B), "behaved" (C), or was distressed (D) or upset by her move.
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25. _________ she remembered their joy together.
Answer: Dejectedly
Explanation:A synonym for "despondently" is "dejectedly," meaning sadly, with despair or depression. The passage indicates this by describing Curie's emotional state as one of "heartbreaking anguish" over her husband's sudden accidental death. She is not described in this passage as worried (B) by her memories, or recalling them tearfully (C), happily (D), or irefully (E), i.e. angrily.
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26. Mr. Mathurs jewels have been stolen from his bank locker. The bank has lockers of 12 people which are arranged in an array of 3 rows and 4 columns like:
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1 2 3 4
5 6 7 8
9 10 11 12
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The locker belonging to JONES was to the right of BLACK'S locker and directly above MILLAR'S.
BOOTH'S locker was directly above MILLAR'S.
SMITH'S locker was also above GRAY's (though not directly).
GREEN'S locker was directly below SMITH'S.
WILSON'S locker was between that of DAVIS and BOOTH.
MILLAR'S locker was on the bottom row directly to the right of HERD'S.
WHITE'S locker was on the bottom right hand corner in the same column as BOOTH'S.
Which box belonged to Mr. Mathurs?
Answer: 9
Explanation:This is a grid problem, apply all the conditions given and then you will be able to find the locker of all the persons mentioned in the question including Mathurs.
Smith David Wilson Booth
Green Grey Black Jones
Mathur Herd Miller White
Box number 9 belongs to Mr.Mathurs.
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27. A hotel has 10 storeys. Which floor is above the floor below the floor, below the floor above the floor, below the floor above the fifth.
Answer: None of these
Explanation:Here is no explanation for this answer
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28. Complete the series:5,20,24,6,2,8,?
Answer: 12
Explanation:if we multiply 5 with 4,you get 20,now add 4 in 20,you get 24,now divide 24 by 4 you get 6 subtract 4 from 6 you get 2 now revise the sequence((which is first multiply,add,divide,subtract).If you multiply 2 with 4 you get 8,now add 4 in 8 and you will get 12 which is the answer.
5*4=20
20+4=24
24/4=6
6-4=2
2*4=8
8+4=12 ans
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29. Two trains start from stations A and B spaced 50 kms apart at the same time and speed. As the trains start, a bird flies from one train towards the other and on reaching the second train, it flies back to the first train. This is repeated till the trains collide. If the speed of the trains is 25 km/h and that of the bird is 100 km/h. How much did the bird travel till the collision.
Answer: 100 kms
Explanation:Since the trains is travelling at 25 kmph, at each other, the relative speed is 50 kmph.
Speed = 50 kmph
Distance = 50 km
Time to collision = distance / speed = 1 hr
Speed of bird = 100 kmph
Time flying = 1 hr (the bird is flying till the trains collide)
Distance travelled = speed time = 100 km
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30. Fifty minutes ago it was four times as many minutes past three o'clock. How many minutes is it to six o'clock..?
Answer: 26 min
Explanation:There are 180 minutes between 3 o'clock and 6 o'clock.
Call x the number of minutes to 6 o'clock.
Then it is 180 - x minutes past 3 o'clock and 50 minutes ago it was 130 - x minuted past 3 o'clock.
Using the 4 times as many minutes past three o'clock bit we can form the equation
130 - x = 4x and solve it
130 = 5x
x = 26 so yes it is 26 minutes.
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