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Mental Math Quiz - 2
1.
If 20 men can eat 200 kg of wheat in 40 days, then 10 men can eat 200 kg of wheat in how many days?
44 days
40 days
35 days
45 days
2.
Collective age of 35 students is 350. If the teacher age is also included the average age of each student becomes 11 years. What is the age of teacher?
45 years
44 years
46 years
36 years
3.
What is the loss in percent, if a book costing Rs.110 is sold for Rs.100?
10%
9.8%
9%
11%
4.
What is 70% of 70?
48
49
57
56
5.
The mean of 4, 5 and x is 6. The value of x is?
9
8
7
11
6.
Two numbers have a sum of 21. If one number is 2 more than the other, what is the larger number?
11.5
9
8.5
12.5
7.
If I gain 33 percent, by selling a book for Rs.4 What is my cost price?
Rs.3
Rs.2.5
Rs.3
Less than Rs.3
8.
The average of five numbers is 7. If the average of first three numbers is 8 then sum of fourth and fifth numbers is?
13
9
12
11
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