STI Pre - 2011

1. 

12.3456 - 6.23 - 5.0045 = ?

2. 

What is the total cost of a bundle of  ₹ 5 lottery tickets having tickets of serial numbers from PB 95219 to PB 95274 ?

3. 

If product of two sequential positive odd numbers is 255, find those numbers.

4. 

Rajanju purchased an old car for ₹ 60,000. After one year he sold it for ₹ 45,000. What is the percentage loss ?

5. 

6. 

What will be the digit at ten's place if first nine numbers from the series 4, 44, 444, ... are added together ?

7. 

Solve : 

8. 

London is ahead in time by 5 hours than New York. New Delhi is ahead in time by 5 hours 30 minutes than London. What will be time in New York when time in New Delhi is 1:54 PM ?

9. 

Solve : 

10. 

If coins of 50 paisa and one rupee are taken in the proportion 3:2, how many coins of 50 paisa will be there in a sum of ₹ 140 ?

11. 

The cost of 10 litre oil jar is ₹ 1000. If on that 25% oil is free, then what will be the cost of oil per litre ?

12. 

Solve : 

13. 

An addition of ages of two brothers is 36 years. If the difference between their ages is of 10 years, find their ages.

14. 

Dolly's mobile service charges are 1 paisa per 2 seconds during day time and 1 paisa per 5 seconds during night time. Dolly's day time calls are of duration 49 seconds, 130 seconds, 291 seconds and night time calls are of duration 352 seconds and 544 seconds. Her mobile bill will be around

15. 

Which of the following is wrong?

16. 

16% of 2100 = _________

17. 

A man can do a job in 6 days and his son can do it in 18 days. How many days would it take them to do the job if they worked together ?

18. 

The addition of two numbers is 146 and difference between them is 18. Then these numbers are 

19. 

20. 

At 11 : 20 in the clock, the minute arm makes an exact angle of ___________ with the hour arm.  

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