Daily Dose of Solved Questions Sep 18

Algebra | CSAT 2019 | Daily Dose of Solved Questions Sep 18 | Civil Services Prelims UPSC | IAS | CSAT MANTRA

A bookseller sold 'a' number of Geography textbooks at the rate of Rs.x per book, 'a+2' number of History textbooks at the rate of Rs.(x+2)per book and 'a-2' number of Mathematics textbooks at the rate od Rs.(x-2) per book. What is the total sale in Rs.?

(a) 3x+3a

(b) 3ax+8

(c) 9ax

(d) x^3a^3

Daily Dose of Solved Questions Sep 13

Algebra | CSAT 2019 | Daily Dose of Solved Questions Sep 13 | Civil Services Prelims UPSC | IAS | CSAT MANTRA

The figure drawn below gives the velocity graphs of two vehicles A and B. The straight line OKP represents the velocity A at any instant, whereas the horizontal straight line CKD represents the velocity of vehicle B at any instant. In the figure, D is the point where perpendicular from P meets the horizontal lines CKD such that PD=\frac{1}{2} LD:

What is the ratio between the distances covered by vehicles A and B in the interval OL?

 

(a) 1:2
(b) 2:3
(c) 3:4
(d) 1:1

Daily Dose of Solved Questions Sep 11

Algebra | CSAT 2019 | Daily Dose of Solved Questions Sep 11 | Civil Services Prelims UPSC | IAS | CSAT MANTRA


Consider the following pattern of numbers

8            10           15            13

6             5             7              4

4             6             8              8

….          ….           ….             ….

6            11           16             ?

What is the number at ? in the above pattern?

(a) 17
(b) 19
(c) 21
(d) 23