Question
The average of ‘x’ numbers is 25. If 70% of the numbers
are decreased by 3 and the remaining numbers are increased by 9, then find the new average of the ‘x’ numbers.Solution
ATQ,
Sum of ‘x’ numbers = 25x
New sum of the ‘x’ numbers = 25x – 0.7x × 3 + 0.3x × 9 = 25.4x
Therefore, new average = 25.4x/x = 25.4
If 74 × 35 = 3, 35 × 13 = 4, 54 × 42 = 3, then 78 × 44 =?
Select the option that is related to the third letter-cluster in the same way as the second letter-cluster is related to the first letter-cluster.
<...If 45 @ 15 = 18' and 28 @ 28 =19', then 48 @ 30 = ?'. What will come in place of question mark?
Select the option that is related to the fifth letter-cluster in the same way as the second letter-cluster is related to the first letter-cluster and t...
In the question, assuming the given statements to be true, find which of the conclusion (s) among given two conclusions is /are definitely true and the...
Select the combination of letters that when placed sequentially in the blanks of the given letter series will complete the series.
E _ P _ R S _ ...
Which of the following will best complete the relationship given below?
LMW: NIT :: QEG :?
Select the option that is related to third letter - cluster in the same way as the second - letter cluster is related to the first letter - cluster and ...
In each of the following questions select the related letter/word/figure/number from the given alternatives.
25 : 175 : : ? : 160
- Select the option that is related to third cluster in the same way first cluster is related to second cluster.
MACHINE: 30 :: JOURNEY: ?
