# Huawei Placement Paper For Freshers Part-3

**21. A certain type of mixture is prepared by mixing brand A at Rs.9 a kg. with brand B at Rs.4 a kg. If the mixture is worth Rs.7 a kg., how many kgs. of brand A are needed to make 40kgs. Of the mixture?**

Ans. Brand A needed is 24kgs

**22. A wizard named Nepo says “I am only three times my son’s age. My father is 40 years more than twice my age. Together the three of us are a mere 1240 years old.” How old is Nepo?**

Ans. 360 years old

**23. One dog tells the other that there are two dogs in front of me. The other one also shouts that he too had two behind him. How many are they?**

Ans. Three.

**24. A man ate 100 bananas in five days, each day eating 6 more than the previous day. How many bananas did he eat on the first day?**

Ans. Eight.

**25. If it takes five minutes to boil one egg, how long will it take to boil four eggs?**

Ans. Five minutes.

**26. The minute hand of a clock overtakes the hour hand at intervals of 64 minutes of correct time. How much a day does the clock gain or lose?**

Ans. 32 8/11 minutes.

**27. Solve for x and y: 1/x – 1/y = 1/3, 1/x2 + 1/y2 = 5/9.**

Ans. x = 3/2 or -3 and y = 3 or -3/2.

**28. Daal is now being sold at Rs. 20 a kg. During last month its rate was Rs. 16 per kg. By how much percent should a family reduce its consumption so as to keep the expenditure fixed?**

Ans. 20 %.

**29. Find the least value of 3x + 4y if x2y3 = 6.**

Ans. 10.

**30. Can you find out what day of the week was January 12, 1979?**

Ans. Friday.

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