10th December, 2016 (Prelims)

Revise 10 questions everyday from Prelims Past Papers (2015 to 1979)

If not satisfied with the answers, please search the internet for correct answers & mention the correct answer in the comments section. Our aim is to make you revise these questions. Answer keys of reputed IAS institutes are referred)

Today’s 10 questions from 1989 GS-1 Prelims Paper [Questions 141 to 150]

For previous questions refer yesterday’s post.

Q141. If a block of gold weighing 100 gm in air is immersed in water with a string tied to a spring balance, what could be the probable weight indicated by the spring balance?

(a) Less than 100 gm

(b) Equal to 100 gm

(c) More than 100 gm

(d) Double of 100 gm


Q142. Which among the following has the largest perimeter?

(a) A square with an area of 25 sq cm

(b) An equilateral triangle with side 5 cm

(c) A circle with diameter 4 cm

(d) A rectangle with area 84 sq cm and one side 12 cm


Q143. The average age of a cricket team reduces by 2 when two senior players aged 32 and30 are replaced by 2 youngsters of equal age. What is the age of these new players ?

(a) 20

(b) 22

(c) 24



Q144. A man is waiting for a bus on routes 10, 17 and 25. The bus on route 10 comes every 10 min, bus on route 17 comes every 20 min, and bus on route 25 comes every 40 min. After the man reaches the stop, a bus just leaves the stop. What is the minimum time for which he has to wait to get a bus ?

(a) 2 min

(b) 4 min

(c) 6 min

(d) 10 min


Q145. Two stores A and B mark the price of an item identically. A allows 3 successive discounts of 10% each. B allows 10% discount on the list price and a subsequent discount of 19%. Under the circumstances, which of the following is true?

(a) The price of the article is cheaper at A.

(b) The price of the article is cheaper at B.

(c) The price of the article is same at A and B.

(d) The price cannot Toe determined.


Q146. In the following figure, what per cent of total area does the shaded portion occupy?

(a) 25%

(b) 30%

(c) 50%

(d) 75%


Q147. A box contains 20 balls of which 8 are green, 7 are white and 5 are red. What is the minimum number of balls to be picked up without replacement to make sure that at least one ball of each colour is drawn ?

(a) 11

(b) 13

(c) 14

(d) 16


Q148. A person walks 10 km north from a point, then he moves 20 km south and subsequently he turns 20 km north. He again turns 20 km south and then moves 10km east. How far is he from the starting point ?

(a) 10 km

(b) 20 km

(c) 30 km

(d) None of the above


Directions: Qs 149 and 150 are based on the following table:

Population (in crore) 1961 1971 1981
Total 43.9 54.8 68.5
Males 22.6 28.4 35.4
Females 21.3 26.4 33.2
Population density 10 177 216
Literacy: Total 240 295 362
Literacy: Males 344 395 469
Literacy: Females 130 187 248


Q149. Which of the following has the highest per cent increase?

(a) Male population

(b) Total population

(c) Sex ratio

(d) Female literacy


Q150. Which of the following has the least per cent increase?

(a) Male population

(b) Total population

(c) Sex ratio

(d) Female literacy

Tomorrow: Next 10 questions from 1988 paper.

To revise [Questions 131-140] refer yesterday’s post.

Click on MAINS and CSAT pages also.