Daily Dose of Solved Questions Sep 26

CSAT 2020 | DDSQ Sep 26 | Civil Services | IAS | UPSC | State PSC | SSC | IBPS | NDA | CDS | Railways

The contribution of five persons in a fund is ₹ 75. Sixth person like to get associated with it. A condition is put before him that he has to contribute to the sum of average contribution of new and old groups. What would be the contribution of new group?

(a) 81
(b) 102
(c) 108
(d) 113

Daily Dose of Solved Questions Sep 25

CSAT 2020 | DDSQ Sep 25 | Civil Services | IAS | UPSC | State PSC | SSC | IBPS | NDA | CDS | Railways

The captain of a cricket team of 11 is 26 years old and the wicket keeper is 3 years older than him. If the ages of these two are excluded, the average age of the remaining players is one year less than the average age of the whole team. What is the average age of whole team?

(a) 23 years
(b) 24 years
(c) 25 years
(d) 26 years

Daily Dose of Solved Questions Sep 18

CSAT 2020 | DDSQ Sep 18 | Civil Services | IAS | UPSC | State PSC | SSC | IBPS | NDA | CDS | Railways

A man travels by a motor boat down a river to his office and back. With the speed of the river unchanged, if he doubles the speed of his motor boat, then his total travel time gets reduced by 75%. The ratio of the original speed of the motor boat to the speed of the river is:

(a) \sqrt{6}:\sqrt{2}
(b) \sqrt{7}:2
(c) 2\sqrt{5}:3
(d) 3:2

Daily Dose of Solved Questions Sep 17

CSAT 2020 | DDSQ Sep 17 | Civil Services | IAS | UPSC | State PSC | SSC | IBPS | NDA | CDS | Railways

A class consists of 20 boys and 30 girls. In the mid-semester examination, the average score of the girls was 5 higher than that of the boys. In the final exam, however, the average score of the girls dropped by 3 while the average score of the entire class increased by 2. The increase in the average score of the boys is

(a) 9.5
(b) 10
(c) 4.5
(d) 6