Answer: B Statement 1 :- It is know that till 4 it loses some seconds. But we cannot figure out that how much it loses in next of the part. Statement II : From this we can easily answer the question. i.e 40 second loses in 1 hour. In 24 hours it loses = 40*24 = 960 seconds.
Q. No. 38:
What is the total number of trips to a certain construction site made by the two trucks delivering 100 metric tonnes of gravel ? Statements : I. The smaller truck carried 5 metric tonnes of gravel on each trip to the site and the larger truck carried 8 metric tonnes gravel on each trip to the site. II. Each truck delivers the same amount of gravel to the site.
A :
If the question can be answered with the help of Statement I alone.
B :
If the question can be answered with the help of Statement II alone.
C :
If the question can be answered with the help of either Statement alone.
D :
If the question cannot be answered even with the help of both the statements taken together or separately.
Answer: C Statement I : gives the quantity of both truck, so we can easily get the answer. Statement II : Says about the volume of each truck, so we can get the answer with the help of II also. Hence, question can be answered with the help of both statements alone.
Q. No. 39:
A moving train moves y metres in t seconds. Find its acceleration. Statements : I. y = t3 -4t2 +16t-2 II. Velocity at the moment was 20m/s.
A :
If the question can be answered by using any one statement alone, but not by using other statements alone.
B :
If the question can be answered by using either of the statements alone.
C :
If the question can be answered by using both the statements together, but it cannot be answered by using either of the statements alone
D :
If the question cannot be answered even by using both the statements together.
Answer: C Statement I :
y = t3 -4t2 +16t-2 From statement II : v = dy/dt = 20 Acceleration = d/dt (dy/dt) = 6t-8 Thus, from both the statements together, acceleration can be found.
Q. No. 40:
A rectangular floor that is 4 metres wide is to be completely covered with square tiles each with side of length 0.25 metres with no portion of such tiles that will be required ? Statements :
I. The length of the floor is three times its width.
II. The area of the floor is 48 square metres.
Answer: C Since we can find the area of floor from either statements. So both the statements are true.
Q. No. 41:
Each students in a class of 40 students voted for exactly one of the 3 candidates A, B and C for the post of the class representative. Did candidate A receive the most votes from the 40 votes cast ? Statements :
I. Candidates A received 11 of the votes.
II. Candidates C received 14 of the votes.
Answer: C Since total number of votes in favour of A and C are given . so, we can find the number of votes obtained by each candidates.
Q. No. 42:
In a certain Management Institute if 50 percent of persons who inquire about the admission policies actually submit applications for admission, then what percent of those who submit applications for admission enroll in the MBA course ? Statements :
I. 15 percent of those who submit applications for admission are accepted for admission.
II. 80 percent of those who are accepted, deposit fees for joining the course.
Answer: C Statement I : Number of admissions is given = 50*15% = 7.5 Statement II : Number of those who deposit the fees = 7.5*80% = 6. Thus, both the statements are required to answer the question.