Question
In a jar, there are (x + 8) red balls, ‘x’ blue
balls, and (x + 2) black balls. If the probability of picking two blue balls at random is (1/45), then find the value of ‘x’.Solution
According to the question, Total number of balls in the jar = (x + 8 + x + x + 2) = (3x + 10) According to the question, 
Since the number of balls cannot be negative, Therefore, x = 5
5, 15, 30, 135, 405, 1215, 3645
Select the wrong term in the series.
7, 14, 42, 210, 1470, 17640
In the following question, select the wrong number from the given alternatives.
43, 50, 64, 85, 113, 138
Arrange the following words in a logical and meaningful order.
1. Monkey
2. Elephant
3. Rat
4. Fly
5. Lion
In the following question, select the wrong number from the given alternatives.
48, 50, 52, 57, 59, 68, 75
Find the wrong number in the series given below.
6, 19, 59, 182, 544, 1637
Find the wrong number in the series given below.
3, 10, 89, 99, 301, 908
In this question, one term in the number series is wrong. Find out the wrong term.
130, 135, 143, 154, 168, 183, 205
Find the wrong number in the given series.
5, 3, 6, 17.25, 64.75
Find out the Wrong number in the following number series.
2, 123, 204, 256, 278, 287
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