GK Questions and Answers, General Knowledge Quiz
Q. The G.C.M. and L.C.M. of the two numbers are 17 and 255 respectively and one of them is 51. The other number must be -
1) 68
2) 85
3) 34
4) 87
Q. A certain sum lent out at simple interest doubles itself in 20 years. The number of years in which this sum trebles itself at the same rate of interest is -
1) 30
2) 40
3) 25
4) 20
Q. An express train leaves station A at 6.45 PM and reaches station B 150 km away at 10.30 PM. The time taken by the train to reach the next station C at a distance of 160 km away from station B with the same speed is -
1) 4 hours
2) 3 hours
3) 3.5 hours
4) 4.25 hours
Q. A and B together can do a piece of work in 10 days. If A alone can do it in 15 days, then the time taken by B to do the same work alone is -
1) 15 days
2) 20 days
3) 25 days
4) 30 days
Q. A sum of money is divided into two parts in the ratio 5 : 3. If the smaller sum is Rs.384, then the total sum of money was -
1) Rs. 1,024
2) Rs. 640
3) Rs. 820
4) Rs. 764
Q. A man purchased a pen for Rs. 320. If he sold it for Rs. 360, then his gain percent was -
1) 40%
2) 25%
3) 12.5%
4) 15%
Q. If 3 pieces of tablecloth cost Rs. 112.50, then the number of pieces of tablecloth available for Rs.487.50 is -
1) 11
2) 13
3) 15
4) 17
Q. Ten years ago, the ages of the father and the son were in the ratio 6 : 1 and 10 years hence the ratio will become 2 : 1. The present age of the father is -
1) 35 years
2) 25 years
3) 30 years
4) 40 years
Q. A book-seller buys books at a commission of 20% on the marked price. If he sells the books at the marked price. Then his gain percentage will be -
1) 20%
2) 25%
3) 10%
4) 30%
Q. The sale price of 2 oranges is equal to the cost price of 3 oranges. The gain percentage is -
1) 40%
2) 50%
3) 25%
4) 20%
