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ATQ, Number of males who were tested negative = 0.55 × 1200 = 660 Number of females who were tested negative = 0.4 × 800 = 320 Required percentage = {(660 + 320)/2000} × 100 = 49%
If the numbers 1 and 2 are interchanged, 3 and 4 change places and also the symbols × and ÷, then find the value of 1 + 3 × 2 ÷ 4.
...Select the number-pair in which the two numbers are related in the same way as are the two numbers of the following number-pair.
7 : 85
Three of the following four numbers are alike in a certain way and one is different. Pick the number that is different from the rest .
Select the number that can replace the question mark (?) in the following series. 17, 21, 30, 46, 71, ?
Four number-pairs have been given, out of which three are alike in some manner and one is different. Select the number-pair that is different.
Consider the following number sequence:
8 5 6 7 3 6 5 1 3 5 3 1 5 6 7
How many prime numbers are present in the above sequence which are n...
Select the options in which the numbers are related in the same way as are the numbers of the following set.
(541, 14, 737)
Which two numbers should be interchanged to make the given equation correct?
9 + 7 × 5 − 18 ÷ 2 = 3 × 4 − 10 + 45 ...
If first and last digit of each number is multiplied and then the product is added to the sum of the middle two digits of the number, which resultant nu...
