ARITHMETICAL REASONING (General Mental Ability) UPSC EPFO

Total Questions: 24

21. Ann, Bill and Ken shared some stamps in the ratio 2:3:4. After a game the ratio became 5 : 2 : 2. If Ann won 21 stamps how many did Ken lose?

Correct Answer: (d) 14
Solution:

22. A florist had 133 roses, she sold 5/7 of them. How many roses had she left?

Correct Answer: (b) 38
Solution:

23. A man climbing up a wall of 24 metres high. He climbs 16 m on one day but slipped back by 3m 40 cms in the evening. How far had the man reached on that day?

Correct Answer: (b) 12.6 m
Solution:Then man climbed = (16.00 – 3.40) metres = 12.60 metres

24. The Weights of 4 boxes are 80, 60, 90 and 70 kilograms. Which of the following cannot be the total weight, in kilograms, of any combination of these boxes and in a combination a box can be used only once.

Correct Answer: (d) 290
Solution:

According to options, 1st option = 80 + 60 + 90 + 70 = 300
2nd option = 80 + 60 + 90 = 230
3rd option = 60 + 90 + 70 = 220
From given weight, we can not get total weight 290.
So, option (d) is different from other options.