Simplify the following

100- 4[25- (5+12-9)] =
i) - 32                      ii) +132
iii) + 32                      4) -132

Assume that the population of India is 120 million. If 40.25% of the
population has height below 5 ft. and 30.76% of the population has height between 5 and 5.5 ft. Find how many people have height greater than 5.5 ft., rounding off your result to 2 decimal places.

The following data have been arranged in ascending order
24, 27, 28, 31, 34, x, 37, 40, 42, 45.
If the median of the data is 34, find x

The digits of a two-digit number differ by 5. If you interchange the digits, the sum of the resulting number and the original number is 99. Then the original number is
i) 43                                         ii) 45
iii) 36                                        iv) 27

[(- 2)^(-2) ]^(-3)  is equal to
1) 64                    2)
3) - 64                  4)

 of a number when multiplied by of the same number gives 338. What is the number?

i) 18                                   ii) 24

iii) 36                                 iv) 26