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Interview Mental Math - 16
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Interview Mental Math - 16
1.
In a class of 30 students, the average age is 10 years, if the teacher age is also included, the average age increases by one year. The teacherâ€™s age is?
a. 54 years
b. 32 years
c. 51 years
d. 41 years
2.
Combined age of two brothers is 20 years. I there is a difference of 2 years between their ages, find out the age of younger brother?
a. 8 Years
b. 11 Years
c. 7 Years
d. 9 Years
3.
What is the profit in percent, if a book costing Rs.100 is sold for Rs.110?
a. 11.5%
b. 10%
c. 9%
d. 11%
4.
Ali invested Rs.1000 for 1 year. At what rate he will get Rs.200 as a profit?
a. 20%
b. 22%
c. 16%
d. 11%
5.
The average of three numbers is 6. If the average of first two numbers is 7 then find the third number?
a. 4
b. 3
c. 3.5
d. 4.5
6.
A bicycle costing Rs.570 is sold at Rs.600. What is the profit percentage?
a. 4.75%
b. 11.1%
c. 5.25%
d. 5%
7.
Click the correct answeDo not use a calculator: 35 + 18 = 29 + ?
a. 21
b. 22
c. 32
d. 24
8.
What is 50% of 50?
a. 20
b. 25
c. 35
d. 30
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