Tea worth Rs. 126 per kg and Rs. 135 per kg are mixed with a third variety of tea in the ratio 1 : 1 : 2. If the mixture is worth Rs. 153 per kg, what is the price of the third variety per kg ?
A. Rs.182.50 B. Rs.170.5
C. Rs.175.50 D. Rs.180
Two pipes A and B can fill a tank in 20 and 30 minutes respectively. If both the pipes are used
together, then how long will it take to fill the tank ?
a) 12 min b) 15 min c) 25 min
d) 50 min e) None of these
A camel pursue an elephant and takes 5 leaps for every 7 leaps of the elephant, but 5 leaps of
elephant are equal to 3 leaps of camel. What is the ratio of speeds of camel and elephant?
a) 21 : 25 b) 24 : 23 c) 25 : 21
d) 23 : 24 e) None of these