Aptitude Test-5

science aptitude test

1. A boat is rowed down the river at 10 kmph and up the river at 2 kmph. What is the speed of the current?





2. If the price of sugar increases by 30% by what percentage the consumption be reduced to make the expenditure same?





3. What strength of 20 ml acid should be added to 10 ml of 50% acid to get an average strength of 20% acid?





4. A spends 1/4th of his leisure on reading books, 2.3rd of the remaining on watching TV. If he spends 2 hrs on watching TV what is the total time of her leisure?





5. An amount of Rs.417 is divided among A, B, C and D such that A gets Rs.13 more than B, B gets Rs.9 more than C and C gets Rs.6 more than D. A’s share is





6. A man invests Rs. 4400 in stock at 110 and sells when the stock rises to 119. What is profit?





7. A dishonest shopkeeper uses 800 gm weight instead of 1ks and mixes 20% impurities to wheat. Find his gain %.





8. A plant reproduces at the rate of 25% every 12 min. In approximately what time will it triple itself?





9. Manju took Rs. 20000 at 5% SI for 2 years and invested it at 4% CI for same period. Find her gain/loss





10. How many number s are there between 200 and 300 in which 9 occurs only once?