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3. A water tank develops a leak at the bottom. When the tank is in good condition, it gets filled in 3.5 hr. It now takes half an hour longer for the tank to get completely filled. If the tank is full, how long would it take for the leak to empty the tank?

5. There are two women participating in a chess tournament. Each participant played two games with every other participants. The number of games played by the men among themselves exceeded by 63 than the number of games played by men against women. How many participants were there in the tournament? Options: 13,14,15,16

8. a, b, c (a > c) are three digits from left to right of a three-digit number. If the number with these digits reversed, is subtracted from the original number, then resulting number has the digit 4 in its unit’s place. The other two respective digits from left to right in the resulting number are

10. A cellphone company, AIRFREE, decides to give the first 10 min of airtime free of cost if a person purchases the instrument from them, else it charges Re.1 per minute. For the next 20 min of airtime it charges its subscriber Rs. 4.5 per minute. The next 20 min are charged at Rs. 8 per minute. Thereafter, with every 10 min increase in airtime, the charge per minute drops by Re. 1, falling to a mimimum of Re.1 per minute. Bitthal buys the phone from Palika Bazaar, and then subscribes to AIRFREE company. His first bill shows an airtime of 2 hr 20 min. How much is he required to pay?

12. In the given figure, OX and OY are tangents and A and C are the centres of the circles. Find P- Q?

14. Keshav started journey with his car from Bikaner with tank full of fuel, 12 gallons exactly. However, the moment he started out, the fuel tank sprung a leak. He travelled at 50 miles per hr until he ran out of fuel exactly 4 hr later. Knowing that the car runs 25 miles for each gallon, how much fuel did he lose through the hole?

17. A 10 hectares field is reaped by 2 men, 3 women and 4 children in 10 days. If 1 man, 1 woman and 1 child work in the ratio 5 : 4 : 2, then 16 hectares field will be reaped by 6 men, 4 women and 7 children in a. 5 days b. 6.5 days c. 7 days d. 8 days

19. Mama gave Guddi a beautiful gold necklace as her birthday present. However, Guddi, being careless as she was, dropped the necklace which broke into five equal pieces of three links each. Guddi ran to a goldsmith and asked him to mend the necklace. The goldsmith said, “For every link that I open and solder, I’ll charge Rs. 10.” Thus, to get the chain mended, Guddi has to pay a minimum of a. Rs. 20 b. Rs. 30 c. Rs. 50 d. Rs. 150

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