Question
The average age of (x + 3) students is 20 years. When
their teacher aged 35 years joins them, the average increases by 1 year. Find x% of 400.Solution
Total age of students = 20(x + 3) years According to question, [20(x + 3) + 35] = (20 + 1)(x + 3 + 1) 20x + 60 + 35 = 21x + 84 20x + 95 = 21x + 84 21x – 20x = 95 – 84 x = 11 So, 11% of 400 = 44
Four letter-clusters have been given, out of which three are alike in some manner and one is different. Select the letter-cluster that is different.
In each of the following questions, a group of four words are given. Choose the word which is odd .
Select the odd group of numbers. (NOTE: Operations should be performed on the whole numbers, without breaking down the numbers into its constituent dig...
Three of the following four letter-clusters pair are alike and one is different. Choose the odd one.
Find the odd one out
Four number-pairs are given, out of which three are alike in certain manner and one is different. Choose the different number-pair.
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.
...Four number-pairs are given, three of which are alike in certain manner and one is different. Choose the different number-pair.
Four letter-clusters have been given out of which three are alike in some manner and one is different. Select the letter-cluster that is different.
Find the odd word pair out from the given options.
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