Which is the 57th number in a series of numbers ? I. Each number in the series is three more than the preceding number. II. The tenth number in the series is 29.
A :
If statement I alone is sufficient to answer the question while statement II alone is not sufficient to answer the question.
B :
If statement II alone is sufficient to answer the question while statement I alone is not sufficient to answer the question.
C :
If the data either in statement I or statement II alone are sufficient to answer the question
D :
If the data in both statements I and II together is necessary to answer the question.
Answer: D Statement I : gives us information about common difference which is 3.(d=3) Statement II : If we considering the 1st term a. The 10th term = a+ 9d. On combining, 29 = a + 9*3 a = 2. The 57th term = a +56d = 2 + 56*3
Q. No. 110:
Consider the following three pieces of Information. I. Geeta and Sita are of same age. II. Total age of Geeta, Reena and Sita is 88 years. III. Reena's age is same as the sum of Geeta and Sita's age. Which of the above pieces of information enables you to answer the question. What is the age of Reena ?
Answer: B From II : Geeta + Reena + Sita = 88 years. From III : Reena = Geeta + Sita = 44 years.
Q. No. 111:
Geetanjali Express, which is 250m long when moving from Howrah to Tatanagar crosses Subarnarekha bridge in 30 sec. What is the speed of Geetanjali Express. I. Bombay Mail, which rums at 60kmph crosses Subarnarekha bridge in 30 sec. II. Bombay Mail when running at 90kmph crosses the lamp post in 10 sec.
A :
Statement I alone is sufficient to answer the question
B :
Statement II alone is sufficient to answer the question
C :
Statement I and Statement II together are sufficient, but neither of the two alone is sufficient to answer the question
D :
Either statement I or Statement II alone is sufficient to answer the question
Answer: C Statement I gives the sum of lengths of Bombay Mail and Subarnarekha bridge. Statement II gives the length of Bombay mail With the help of two statements we can get the length of Subarnarekha bridge and then we get the answer.