Reasoning Ability Answer with Explanation For IBPS And SBI - Data sufficiency

In each of the questions below consists of a question and two statements numbered I and II given below it. You have to decide whether the data provided in the statements are sufficient to answer the question. Read both the statements and
Give answer

• (A) If the data in statement I alone are sufficient to answer the question, while the data in statement II alone are not sufficient to answer the question
• (B) If the data in statement II alone are sufficient to answer the question, while the data in statement I alone are not sufficient to answer the question
• (C) If the data either in statement I alone or in statement II alone are sufficient to answer the question
• (D) If the data given in both statements I and II together are not sufficient to answer the question and
• (E) If the data in both statements I and II together are necessary to answer the question.

1.

Question: In which year was Rajesh born ? Statements: Rahul at present is 15 years younger to his mother. Rahul's brother, who was born in 1974, is 25 years younger to his mother.

A. I alone is sufficient while II alone is not sufficient B. II alone is sufficient while I alone is not sufficient C. Either I or II is sufficient D. Neither I nor II is sufficient E. Both I and II are sufficient Answer & Explanation Answer: Option E Explanation: From both I and II, we find that Rajesh is (25 - 15) = 10 years older than his brother, who was born in 1974. So, Rahul was born in 1964. . 2.  Question: What will be the total weight of 10 poles, each of the same weight ? Statements: One-fourth of the weight of each pole is 5 kg. The total weight of three poles is 20 kilograms more than the total weight of two poles. A. I alone is sufficient while II alone is not sufficient B. II alone is sufficient while I alone is not sufficient C. Either I or II is sufficient D. Neither I nor II is sufficient E. Both I and II are sufficient Answer & Explanation Answer: Option C Explanation: From I, we conclude that weight of each pole = (4x5) kg = 20 kg. So, total weight of 10 poles = (20 x 10) kg = 200 kg. From II, we conclude that: Weight of each pole = (weight of 3 poles) - (weight of 2 poles) = 20 kg. So, total weight of 10 poles = (20 x 10) kg = 200 kg.  3. Question: How many children does Manu have ? Statements: Hema is the only daughter of latha who is wife of Manu. Kiran and Jay are brothers of latha. A. I alone is sufficient while II alone is not sufficient B. II alone is sufficient while I alone is not sufficient C. Either I or II is sufficient D. Neither I nor II is sufficient E. Both I and II are sufficient Answer & Explanation Answer: Option D Explanation: From I, we conclude that Hema is the only daughter of Manu. But this does not indicate that Manu has no son. The information given in II is immaterial.  4. Question: How much was the total sale of the company ? Statements: The company sold 10,000 units of product A each costing Rs. 25. This company has no other product line. A. I alone is sufficient while II alone is not sufficient B. II alone is sufficient while I alone is not sufficient C. Either I or II is sufficient D. Neither I nor II is sufficient E. Both I and II are sufficient Answer & Explanation Answer: Option E Explanation: From I, total sale of product A = Rs. (10000 x 25) = Rs. 250000. From II, we know that the company deals only in product A. This implies that sale of product A is the total sale is 25000.  5. Question: The last Sunday of March, 2010 fell on which date ? Statements: The first Sunday of that month fell on 5th. The last day of that month was Friday. A. I alone is sufficient while II alone is not sufficient B. II alone is sufficient while I alone is not sufficient C. Either I or II is sufficient D. Neither I nor II is sufficient E. Both I and II are sufficient Answer & Explanation Answer: Option C Explanation: From I, we conclude that 5th, 12th, 19th and 26th of March, 2010 were Sundays. So, the last Sunday fell on 26th. From II, we conclude that 31st M