Quant: Previous Year Questions for SSC CGL 2016

Q1. In library the ratio of story books and other books is 7: 2 and there are 1512 story books. Due to collection of some more story books the said ratio becomes 15: 4. The number of story books collected is:
(a) 100
(b) 97
(c) 108
(d) 205

Q2. Let BE and CF be the two medians of a tringle ABC and G be their intersection. Also let EF cut AG at O. Then AO : OG is:
(a) 1: 1
(b) 1: 2
(c) 2: 1
(d) 3: 1

Q3. The ratio of number of balls in bags x,y  is 2: 3. Five balls are taken from bag y and are dropped in bag x. Number of balls are equal in each bag now is:
(a) 45
(b) 20
(c) 30
(d) 25

Q4. A cat takes 5 leaps for every 4 leaps of a dog. But 3 leaps of the dog are equal to 4 leaps of the cat. What is the ratio of the speeds of the cat to that of the dog?
(a) 11: 15
(b) 15: 11
(c) 16: 15
(d) 15: 16

Q5. When x^m is multiplied by x^n, product is 1. The relation between m and n is: 
(a) m=n
(b) m=-n
(c) mn=1
(d) m+n=1

Q6. If a^2+a+1=0, then the value of a^9 is: 
(a) 3  
(b) 1
(c) 0
(d) 2

Q7. Ronald and Elan are working on an assignment. Ronald takes 6 h to type 32 pages on a computer, while Elan takes 5 h to type 40 pages. How much time will they take, working together on two different computers to type an assignment of 110 pages? 
(a) 7 h 30 min
(b) 8 h
(c) 8 h 15 min
(d) 8 h 25 min

Q8. If a∶b=c∶d=e∶f=1∶2, then (3a+5c+7e):(3b+5d+7f)=?
(a) 1 : 2
(b) 1 : 4
(c) 2 : 1
(d) 8 : 7

Q9. Vessels A and B contain mixtures of milk and water in the ratio 4 : 5 and 5 : 1 respectively. In what ratio should quantities of mixtures be taken from A to B to form a mixture in which milk  and water is in the ratio 5 : 4 ? 
(a) 2 : 5
(b) 2 : 3
(c) 4 : 3
(d) 5 : 2

Q10. Instead of dividing Rs. 117 among P, Q, R in the ratio 1/2 : 1/3 : 1/4, by mistake it was divided in the ratio 2 : 3 : 4. Who gained in the transaction? 
(a) Only P
(b) Only Q
(c) Only R
(d) Both Q and R