1 . The compound interest on Rs. 2500 at the rate of 6% p.a. after 2 years will be (1)
(1) Rs. 309
(2) Rs. 318
(3) Rs. 320
(4) None of these
2. The ratio between the ages of Ram and Mohan is 4:5 and that between Mohan and Anil is 5:6. If sum of the ages of three be 90 years, how old is Mohan? (3)
(1) 24 years
(2) 20 years
(3) 30 years
(4) 25 years
3. A man covers a distance of 6 km at the rate 4 kmph and other 4 km at 3 kmph. His average speed is (2)
(1) 9&13/7 kmph
(2) 3&9/17 kmph
(3) 5&9/17 kmph
(4) 3 & 5/9 kmph
4. The cost price of an article is Rs. 7840. To gain 7%, the article should be sold at (1)
(1) Rs. 8388.80
(2) Rs. 8000
(3) Rs. 8383.80
(4) Rs. 8833.80
5. Two pipes can fill a tank in 10 minutes and 30 minutes respectively and a third pipe can empty the full tank in 20 minutes. If all the three pipes are opened simultaneously, the tank will be (4)
(1) 10 minutes
(2) 8 minutes
(3) 7 minutes
(4) None of these
