Q11. 
Abhishek had a certain number of Re 1 coins, Rs 2 coins and Rs 10 coins. If the number of Re 1 coins he had is six times the number of Rs 2 coins Abhishek had, and the total worth of his coins is Rs 160, find the maximum number of Rs 10 coins Abhishek could have had. 
A.  12 

B.  10 

C.  8 

D.  6 
Q12. 
In a family of husband, wife and a daughter, the sum of the husband’s age, twice the wife’s age, and thrice the daughter’s age is 85; while the sum of twice the husband’s age, four times the wife’s age, and six times the daughter’s age is 170. It is also given that the sum of five times the husband’s age, ten times the wife’s age and fifteen times the daughter’s age equals 450. The number of possible solutions, in terms of the ages of the husband, wife and the daughter, to this problem is: 
A.  0 

B.  1 

C.  2 

D.  Infinitely many 
Q13. 
There are 2 men, 3 women and 1 child in Pradeep’s family and 1 man, 1 woman and 2 children in Prabhat’s family. The recommended calorie requirement is Men: 2400, Women: 1900, Children: 1800 and for proteins is: Men: 55 gm, Woman: 45 gm, children: 33 gm. Calculate the total requirement of calories and proteins for each of the two families. 
A.  $A$: 12300, 278; $B$: 7900 ,166 

B.  $A$: 12400, 300; $B$: 8000, 167 

C.  $A$: 12300, 278; $B$: 6600, 200 

D.  $A$: 8000, 278; $B$: 7900, 166 
Q14. 
The currencies in countries $X$ and $Y$ are denoted by $X_s$. and $Y_s$. respectively. The exchange rate in 1990 was $1$ $X_s. = 0.6 Y_s$. The price level in 2006 in $X$ and $Y$ are 150 and 400 respectively with 1990 as a base of 100. The exchange rate in 2006, based solely on this purchasing power parity consideration, is 1 $X_s.=$ 
A.  0.225 $Y_s$ 

B.  0.625 $Y_s$ 

C.  1.6 $Y_s$ 

D.  3.6 $Y_s$. 
Q15. 
A group of 630 children is arranged in rows for a group photograph session. Each row contains three fewer children than the row in front of it. What number of rows is not possible? 
A.  3 

B.  4 

C.  5 

D.  6 