CAT Exam

The average price of 12 different books is Rs 16 while the average price of 10 of these books is Rs 16.10. Of the remaining two books if the price of one is 50% more than the price of the other. What is the price of these two books?

(a) Rs 13, Rs 19.50
(b) Rs 24, Rs 36.15
(c) Rs 12.40, Rs 18.60
(d) Rs 16.40, Rs 24.60

Read Solution (Total 1)

10x12=192
10x16.10=161
192-161=10
150/100x=3/2x
x+3/2x31
X=62/5 =12.40
31-12.40
X=18.60
11 years agoHelpfull: Yes(2) No(3)

CAT Other Question

ramu and kavya are brother and sisters,but we dont know who is younger or elder..ramu said that he is younger and kavy said tha she is elder.but one of them said was lying then,find out who is younger ? The average salary per head of all the employees in an institution is Rs 1600. The average salary per head of 40 officers is Rs 2950, the average salary per head of the rest is Rs 600. What is the total number of workers?
(a) 37
(b) 64
(c) 59
(d) 63